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Guide Understanding and Identifying Phenotypes (1 Viewer)

Guide Understanding and Identifying Phenotypes

tuv

True Khan
Joined
Nov 24, 2025
Posts
197
Reputation
474
This is water but I'm bored so let's get into it:really::pepecheers:

View attachment 30186

Understanding and Identifying Phenotypes

By FoidSlayer
________________________________________________

Table of Contents:

Introduction
Pigmentation
Facial Features
Eyebrows
Height/Body Measurements
Cephalic Index
Robustness
Facial Index
Nasal Index
Hair
Conclusion
___________________________________________________


Introduction:

What is a phenotype?
A phenotype is a set of characteristics that make up ones appearance, that is determined by ones genotype (genetic makeup). And is also influenced by environmental factors, such as lifestyle,climate and diet. Now knowing this it is safe to say that phenotypes are responsible for constructing and catagorizing human populations into racial groups. In this thread I will tell you how to distinguish between different phenotypes.

Pigmentation:

Pigmentation can be a good characteristic when determining phenotype, darker skin evolved to take in less UV in regions around the equator while lighter skin evolved from places further away from the equator in order to take in more UV.
View attachment 30187

Type 1 (Pale/White): Never tans always burns

Type 2 (Fair/Light): Tans poorly burns frequently

Type 3 (Darker White/Olive): Tans after initial burn

Type 4 (Light Brown): Tans easily and burns minimally

Type 5 (Brown/Dark Brown): Tans very easily and barely ever burns

Type 6 (Dark Brown/Black): Tans profusely and never burns

Pictured above is the Fitzpatrick scale and it is a useful tool for identifying phenotypes as it can be used to track location of origin in many people

Very Dark
(Tropical/Equatorial)

Dark Brown
(Tropical/Savannah)

Light Brown/Olive
(Sub-Tropical/Temperate)

Fair/Pale
(High Latitude)


View attachment 30191

Skin undertones are also a good indicator, Europeans often have red/rosy undertones and yellow/olive undertones as well. Non-Europeans can have a wide range of undertones ranging from beige, brown and grey.

Also eye color can be a good symbol when determining levels of melanin which can help when Identifying.

Facial Features:

The nose is very important when identifying, in order to identify you would want to look at the base of the nose, the overall shape of it and the contour.

View attachment 30192

Another facial feature that can help when Identifying are eyes, look at the folds and the shape of them (Ex: Most Asians having monolids).

View attachment 30193

Eyebrows:

Eyebrows are also a useful tool when identifying (not as useful as other methods discussed in this thread but still useful).

Eyebrow Thickness and Density:
The EDAR gene is linked to eyebrow thickness specifically in Asian populations and also research shows that African women often have lower hair density in their eyebrows.

Shape and Structure:
Indian women are known to have longer eyebrows according to research, however Chinese and Japanese women are prone to having more straight eyebrow shapes.

Color Variety:
Coloring in the eyebrows are a good indicator when determining melanin levels l, just like eye color and pigmentation this is a good symbol when identifying.

Eyebrows are highly customizable and they vary a lot from person to person so while it is a tool you can use to identify, there are better tools out there for sure.

Height/Body Measurements:

Arguably one of the lesser important metrics when determining phenotype, This metric can be linked to robustness though.

More Reduced Types:
Usually skinnier and have an easier time putting on fat while also having a moderate to shorter stature (alpinid phenotype).

More Robust Types:
Often identified by their thicker bone structure, an easier time putting on muscle as well as a wider frame (nesiotid phenotype).

View attachment 30313

This is also apparent when we see that one ethnic is taller than another one on average (Ex. White people usually being taller than most Asians). However this overall isn't the best metric when identifying because of everyone's individuality in this field.

Cephalic Index:

This is an important measurement that can indicate robustness or reduction like we talked about in the last section. Now I will share the formula on how to get the cephalic Index (CI).

Width (Biparietal Diameter)
CI = ________________________________ X 100
Length (Occipitofrontal Diameter)

View attachment 30319

Measurements are best when taken with calipers and here are some classifications of head shapes below,

<75 (Dolichocephalic): Long and Narrow Head.

75-80 (Mesocephalic): Average or Oval Shaped Head.

>80 (Brachycephalic): Short and Broad Head.

In order to measure, you must take your calipers and place one end in between the eyebrows and the other on the most prominent part of the back of the head (This is how to find length).

View attachment 30327

Now I'm order to find the width you'd want to measure from the widest points on the sides of the head (Blue Line).

View attachment 30329

View attachment 30332

Robustness:

I wont go over this too much as I feel like I talked about it in the last two sections. Robustness refers to ones physical strength and thickness in bone structure, in our case relating to the skull.

Robustness = Bigger skulls, wider jaws and faces, more prominent bones, bigger bodies.

Reduction = Essentially the opposite of robustness just a decrease in robustness which can lead to smaller size and less prominent bone structure.

Facial Index:

Facial Index (FI) refers to the measurement of the face height and width and is a key metric when determining phenotypes. This is the formula for the FI listed below,

Face Height Measurement
FI = ___________________________________ X 100
Face Width Measurement

Classifications,

Hyper-euryprosopic <80 FI

Euryprosopic 80-85 FI


Mesoprosopic 85-90 FI

Leptoprosopic 90-95 FI

Hyper-leptoprosopic >95 FI


View attachment 30340

Nasal Index:

This is a measurement taken on the nose and is Important when classifying inter racial people. Here is the formula below,

Nasal Width
NI = __________________________ X 100
Nasal Height

Classifications,

View attachment 30341

These measurements are often taken with calipers, measuring the width at its widest point while the height is measured from the nasian to the subnasian point.

View attachment 30342

Hair:

There is a lot when it comes to hair, it shows evolutionary traits and can be a good tool when identifying.

Coily

Curly

Wavy

Straight

The coily hair type came to be because of hot,dry climates and was a thermoregulatory mechanism for early humans View attachment 30352

Similarly to Coily hair curly hair evolved to be a thermoregulatory tool for early humans allowing for better scalp cooling and reduced water loss
View attachment 30358

Moving down the spectrum we have wavy hair, wavy hair came to be when it evolved due to the need for scalp temperature management (cooler temps were better) and also natural shielding from UV so it's similar to Coily and curly.
View attachment 30360

Lastly we have straight hair, moving away from the equator straight hair evolved for heat retention while also letting more UV penetrate allowing for better vitamin D absorption and warmth.
View attachment 30362

Also hair color can be a good tool when classifying phenotypes as it is highly hereditary. It can be used to determine melanin levels or locations of origins (Ex. Lots of Irish people being red headed).

View attachment 30365

Conclusion:

I'm going to wrap up the thread here, this is a list of tools you can use when classifying, however some tools here are better than others

Thank you for reading:feelsyay:

Leave a rep of you enjoyed :cheers::bigbrain:

Until next time bhais♥️
Very interesting but i am too low iq to understand it, how about you look at me and tell me what i fit into bhai 😍
 

hoodsickle

Doki doki literature club> real women
Joined
Dec 16, 2025
Posts
745
Reputation
1,610
This is water but I'm bored so let's get into it:really::pepecheers:

View attachment 30186

Understanding and Identifying Phenotypes

By FoidSlayer
________________________________________________

Table of Contents:

Introduction
Pigmentation
Facial Features
Eyebrows
Height/Body Measurements
Cephalic Index
Robustness
Facial Index
Nasal Index
Hair
Conclusion
___________________________________________________


Introduction:

What is a phenotype?
A phenotype is a set of characteristics that make up ones appearance, that is determined by ones genotype (genetic makeup). And is also influenced by environmental factors, such as lifestyle,climate and diet. Now knowing this it is safe to say that phenotypes are responsible for constructing and catagorizing human populations into racial groups. In this thread I will tell you how to distinguish between different phenotypes.

Pigmentation:

Pigmentation can be a good characteristic when determining phenotype, darker skin evolved to take in less UV in regions around the equator while lighter skin evolved from places further away from the equator in order to take in more UV.
View attachment 30187

Type 1 (Pale/White): Never tans always burns

Type 2 (Fair/Light): Tans poorly burns frequently

Type 3 (Darker White/Olive): Tans after initial burn

Type 4 (Light Brown): Tans easily and burns minimally

Type 5 (Brown/Dark Brown): Tans very easily and barely ever burns

Type 6 (Dark Brown/Black): Tans profusely and never burns

Pictured above is the Fitzpatrick scale and it is a useful tool for identifying phenotypes as it can be used to track location of origin in many people

Very Dark
(Tropical/Equatorial)

Dark Brown
(Tropical/Savannah)

Light Brown/Olive
(Sub-Tropical/Temperate)

Fair/Pale
(High Latitude)


View attachment 30191

Skin undertones are also a good indicator, Europeans often have red/rosy undertones and yellow/olive undertones as well. Non-Europeans can have a wide range of undertones ranging from beige, brown and grey.

Also eye color can be a good symbol when determining levels of melanin which can help when Identifying.

Facial Features:

The nose is very important when identifying, in order to identify you would want to look at the base of the nose, the overall shape of it and the contour.

View attachment 30192

Another facial feature that can help when Identifying are eyes, look at the folds and the shape of them (Ex: Most Asians having monolids).

View attachment 30193

Eyebrows:

Eyebrows are also a useful tool when identifying (not as useful as other methods discussed in this thread but still useful).

Eyebrow Thickness and Density:
The EDAR gene is linked to eyebrow thickness specifically in Asian populations and also research shows that African women often have lower hair density in their eyebrows.

Shape and Structure:
Indian women are known to have longer eyebrows according to research, however Chinese and Japanese women are prone to having more straight eyebrow shapes.

Color Variety:
Coloring in the eyebrows are a good indicator when determining melanin levels l, just like eye color and pigmentation this is a good symbol when identifying.

Eyebrows are highly customizable and they vary a lot from person to person so while it is a tool you can use to identify, there are better tools out there for sure.

Height/Body Measurements:

Arguably one of the lesser important metrics when determining phenotype, This metric can be linked to robustness though.

More Reduced Types:
Usually skinnier and have an easier time putting on fat while also having a moderate to shorter stature (alpinid phenotype).

More Robust Types:
Often identified by their thicker bone structure, an easier time putting on muscle as well as a wider frame (nesiotid phenotype).

View attachment 30313

This is also apparent when we see that one ethnic is taller than another one on average (Ex. White people usually being taller than most Asians). However this overall isn't the best metric when identifying because of everyone's individuality in this field.

Cephalic Index:

This is an important measurement that can indicate robustness or reduction like we talked about in the last section. Now I will share the formula on how to get the cephalic Index (CI).

Width (Biparietal Diameter)
CI = ________________________________ X 100
Length (Occipitofrontal Diameter)

View attachment 30319

Measurements are best when taken with calipers and here are some classifications of head shapes below,

<75 (Dolichocephalic): Long and Narrow Head.

75-80 (Mesocephalic): Average or Oval Shaped Head.

>80 (Brachycephalic): Short and Broad Head.

In order to measure, you must take your calipers and place one end in between the eyebrows and the other on the most prominent part of the back of the head (This is how to find length).

View attachment 30327

Now I'm order to find the width you'd want to measure from the widest points on the sides of the head (Blue Line).

View attachment 30329

View attachment 30332

Robustness:

I wont go over this too much as I feel like I talked about it in the last two sections. Robustness refers to ones physical strength and thickness in bone structure, in our case relating to the skull.

Robustness = Bigger skulls, wider jaws and faces, more prominent bones, bigger bodies.

Reduction = Essentially the opposite of robustness just a decrease in robustness which can lead to smaller size and less prominent bone structure.

Facial Index:

Facial Index (FI) refers to the measurement of the face height and width and is a key metric when determining phenotypes. This is the formula for the FI listed below,

Face Height Measurement
FI = ___________________________________ X 100
Face Width Measurement

Classifications,

Hyper-euryprosopic <80 FI

Euryprosopic 80-85 FI


Mesoprosopic 85-90 FI

Leptoprosopic 90-95 FI

Hyper-leptoprosopic >95 FI


View attachment 30340

Nasal Index:

This is a measurement taken on the nose and is Important when classifying inter racial people. Here is the formula below,

Nasal Width
NI = __________________________ X 100
Nasal Height

Classifications,

View attachment 30341

These measurements are often taken with calipers, measuring the width at its widest point while the height is measured from the nasian to the subnasian point.

View attachment 30342

Hair:

There is a lot when it comes to hair, it shows evolutionary traits and can be a good tool when identifying.

Coily

Curly

Wavy

Straight

The coily hair type came to be because of hot,dry climates and was a thermoregulatory mechanism for early humans View attachment 30352

Similarly to Coily hair curly hair evolved to be a thermoregulatory tool for early humans allowing for better scalp cooling and reduced water loss
View attachment 30358

Moving down the spectrum we have wavy hair, wavy hair came to be when it evolved due to the need for scalp temperature management (cooler temps were better) and also natural shielding from UV so it's similar to Coily and curly.
View attachment 30360

Lastly we have straight hair, moving away from the equator straight hair evolved for heat retention while also letting more UV penetrate allowing for better vitamin D absorption and warmth.
View attachment 30362

Also hair color can be a good tool when classifying phenotypes as it is highly hereditary. It can be used to determine melanin levels or locations of origins (Ex. Lots of Irish people being red headed).

View attachment 30365

Conclusion:

I'm going to wrap up the thread here, this is a list of tools you can use when classifying, however some tools here are better than others

Thank you for reading:feelsyay:

Leave a rep of you enjoyed :cheers::bigbrain:

Until next time bhais♥️
Mirin so hard bhai😍incredible🤩🤩
 

darkie+

dream
Joined
Nov 14, 2025
Posts
726
Reputation
406
This is water but I'm bored so let's get into it:really::pepecheers:

View attachment 30186

Understanding and Identifying Phenotypes

By FoidSlayer
________________________________________________

Table of Contents:

Introduction
Pigmentation
Facial Features
Eyebrows
Height/Body Measurements
Cephalic Index
Robustness
Facial Index
Nasal Index
Hair
Conclusion
___________________________________________________


Introduction:

What is a phenotype?
A phenotype is a set of characteristics that make up ones appearance, that is determined by ones genotype (genetic makeup). And is also influenced by environmental factors, such as lifestyle,climate and diet. Now knowing this it is safe to say that phenotypes are responsible for constructing and catagorizing human populations into racial groups. In this thread I will tell you how to distinguish between different phenotypes.

Pigmentation:

Pigmentation can be a good characteristic when determining phenotype, darker skin evolved to take in less UV in regions around the equator while lighter skin evolved from places further away from the equator in order to take in more UV.
View attachment 30187

Type 1 (Pale/White): Never tans always burns

Type 2 (Fair/Light): Tans poorly burns frequently

Type 3 (Darker White/Olive): Tans after initial burn

Type 4 (Light Brown): Tans easily and burns minimally

Type 5 (Brown/Dark Brown): Tans very easily and barely ever burns

Type 6 (Dark Brown/Black): Tans profusely and never burns

Pictured above is the Fitzpatrick scale and it is a useful tool for identifying phenotypes as it can be used to track location of origin in many people

Very Dark
(Tropical/Equatorial)

Dark Brown
(Tropical/Savannah)

Light Brown/Olive
(Sub-Tropical/Temperate)

Fair/Pale
(High Latitude)


View attachment 30191

Skin undertones are also a good indicator, Europeans often have red/rosy undertones and yellow/olive undertones as well. Non-Europeans can have a wide range of undertones ranging from beige, brown and grey.

Also eye color can be a good symbol when determining levels of melanin which can help when Identifying.

Facial Features:

The nose is very important when identifying, in order to identify you would want to look at the base of the nose, the overall shape of it and the contour.

View attachment 30192

Another facial feature that can help when Identifying are eyes, look at the folds and the shape of them (Ex: Most Asians having monolids).

View attachment 30193

Eyebrows:

Eyebrows are also a useful tool when identifying (not as useful as other methods discussed in this thread but still useful).

Eyebrow Thickness and Density:
The EDAR gene is linked to eyebrow thickness specifically in Asian populations and also research shows that African women often have lower hair density in their eyebrows.

Shape and Structure:
Indian women are known to have longer eyebrows according to research, however Chinese and Japanese women are prone to having more straight eyebrow shapes.

Color Variety:
Coloring in the eyebrows are a good indicator when determining melanin levels l, just like eye color and pigmentation this is a good symbol when identifying.

Eyebrows are highly customizable and they vary a lot from person to person so while it is a tool you can use to identify, there are better tools out there for sure.

Height/Body Measurements:

Arguably one of the lesser important metrics when determining phenotype, This metric can be linked to robustness though.

More Reduced Types:
Usually skinnier and have an easier time putting on fat while also having a moderate to shorter stature (alpinid phenotype).

More Robust Types:
Often identified by their thicker bone structure, an easier time putting on muscle as well as a wider frame (nesiotid phenotype).

View attachment 30313

This is also apparent when we see that one ethnic is taller than another one on average (Ex. White people usually being taller than most Asians). However this overall isn't the best metric when identifying because of everyone's individuality in this field.

Cephalic Index:

This is an important measurement that can indicate robustness or reduction like we talked about in the last section. Now I will share the formula on how to get the cephalic Index (CI).

Width (Biparietal Diameter)
CI = ________________________________ X 100
Length (Occipitofrontal Diameter)

View attachment 30319

Measurements are best when taken with calipers and here are some classifications of head shapes below,

<75 (Dolichocephalic): Long and Narrow Head.

75-80 (Mesocephalic): Average or Oval Shaped Head.

>80 (Brachycephalic): Short and Broad Head.

In order to measure, you must take your calipers and place one end in between the eyebrows and the other on the most prominent part of the back of the head (This is how to find length).

View attachment 30327

Now I'm order to find the width you'd want to measure from the widest points on the sides of the head (Blue Line).

View attachment 30329

View attachment 30332

Robustness:

I wont go over this too much as I feel like I talked about it in the last two sections. Robustness refers to ones physical strength and thickness in bone structure, in our case relating to the skull.

Robustness = Bigger skulls, wider jaws and faces, more prominent bones, bigger bodies.

Reduction = Essentially the opposite of robustness just a decrease in robustness which can lead to smaller size and less prominent bone structure.

Facial Index:

Facial Index (FI) refers to the measurement of the face height and width and is a key metric when determining phenotypes. This is the formula for the FI listed below,

Face Height Measurement
FI = ___________________________________ X 100
Face Width Measurement

Classifications,

Hyper-euryprosopic <80 FI

Euryprosopic 80-85 FI


Mesoprosopic 85-90 FI

Leptoprosopic 90-95 FI

Hyper-leptoprosopic >95 FI


View attachment 30340

Nasal Index:

This is a measurement taken on the nose and is Important when classifying inter racial people. Here is the formula below,

Nasal Width
NI = __________________________ X 100
Nasal Height

Classifications,

View attachment 30341

These measurements are often taken with calipers, measuring the width at its widest point while the height is measured from the nasian to the subnasian point.

View attachment 30342

Hair:

There is a lot when it comes to hair, it shows evolutionary traits and can be a good tool when identifying.

Coily

Curly

Wavy

Straight

The coily hair type came to be because of hot,dry climates and was a thermoregulatory mechanism for early humans View attachment 30352

Similarly to Coily hair curly hair evolved to be a thermoregulatory tool for early humans allowing for better scalp cooling and reduced water loss
View attachment 30358

Moving down the spectrum we have wavy hair, wavy hair came to be when it evolved due to the need for scalp temperature management (cooler temps were better) and also natural shielding from UV so it's similar to Coily and curly.
View attachment 30360

Lastly we have straight hair, moving away from the equator straight hair evolved for heat retention while also letting more UV penetrate allowing for better vitamin D absorption and warmth.
View attachment 30362

Also hair color can be a good tool when classifying phenotypes as it is highly hereditary. It can be used to determine melanin levels or locations of origins (Ex. Lots of Irish people being red headed).

View attachment 30365

Conclusion:

I'm going to wrap up the thread here, this is a list of tools you can use when classifying, however some tools here are better than others

Thank you for reading:feelsyay:

Leave a rep of you enjoyed :cheers::bigbrain:

Until next time bhais♥️
great thread, my love:AYAYASmile:
 

fgfr3

nothing
Joined
Feb 16, 2026
Posts
224
Reputation
324
This is water but I'm bored so let's get into it:really::pepecheers:

View attachment 30186

Understanding and Identifying Phenotypes

By FoidSlayer
________________________________________________

Table of Contents:

Introduction
Pigmentation
Facial Features
Eyebrows
Height/Body Measurements
Cephalic Index
Robustness
Facial Index
Nasal Index
Hair
Conclusion
___________________________________________________


Introduction:

What is a phenotype?
A phenotype is a set of characteristics that make up ones appearance, that is determined by ones genotype (genetic makeup). And is also influenced by environmental factors, such as lifestyle,climate and diet. Now knowing this it is safe to say that phenotypes are responsible for constructing and catagorizing human populations into racial groups. In this thread I will tell you how to distinguish between different phenotypes.

Pigmentation:

Pigmentation can be a good characteristic when determining phenotype, darker skin evolved to take in less UV in regions around the equator while lighter skin evolved from places further away from the equator in order to take in more UV.
View attachment 30187

Type 1 (Pale/White): Never tans always burns

Type 2 (Fair/Light): Tans poorly burns frequently

Type 3 (Darker White/Olive): Tans after initial burn

Type 4 (Light Brown): Tans easily and burns minimally

Type 5 (Brown/Dark Brown): Tans very easily and barely ever burns

Type 6 (Dark Brown/Black): Tans profusely and never burns

Pictured above is the Fitzpatrick scale and it is a useful tool for identifying phenotypes as it can be used to track location of origin in many people

Very Dark
(Tropical/Equatorial)

Dark Brown
(Tropical/Savannah)

Light Brown/Olive
(Sub-Tropical/Temperate)

Fair/Pale
(High Latitude)


View attachment 30191

Skin undertones are also a good indicator, Europeans often have red/rosy undertones and yellow/olive undertones as well. Non-Europeans can have a wide range of undertones ranging from beige, brown and grey.

Also eye color can be a good symbol when determining levels of melanin which can help when Identifying.

Facial Features:

The nose is very important when identifying, in order to identify you would want to look at the base of the nose, the overall shape of it and the contour.

View attachment 30192

Another facial feature that can help when Identifying are eyes, look at the folds and the shape of them (Ex: Most Asians having monolids).

View attachment 30193

Eyebrows:

Eyebrows are also a useful tool when identifying (not as useful as other methods discussed in this thread but still useful).

Eyebrow Thickness and Density:
The EDAR gene is linked to eyebrow thickness specifically in Asian populations and also research shows that African women often have lower hair density in their eyebrows.

Shape and Structure:
Indian women are known to have longer eyebrows according to research, however Chinese and Japanese women are prone to having more straight eyebrow shapes.

Color Variety:
Coloring in the eyebrows are a good indicator when determining melanin levels l, just like eye color and pigmentation this is a good symbol when identifying.

Eyebrows are highly customizable and they vary a lot from person to person so while it is a tool you can use to identify, there are better tools out there for sure.

Height/Body Measurements:

Arguably one of the lesser important metrics when determining phenotype, This metric can be linked to robustness though.

More Reduced Types:
Usually skinnier and have an easier time putting on fat while also having a moderate to shorter stature (alpinid phenotype).

More Robust Types:
Often identified by their thicker bone structure, an easier time putting on muscle as well as a wider frame (nesiotid phenotype).

View attachment 30313

This is also apparent when we see that one ethnic is taller than another one on average (Ex. White people usually being taller than most Asians). However this overall isn't the best metric when identifying because of everyone's individuality in this field.

Cephalic Index:

This is an important measurement that can indicate robustness or reduction like we talked about in the last section. Now I will share the formula on how to get the cephalic Index (CI).

Width (Biparietal Diameter)
CI = ________________________________ X 100
Length (Occipitofrontal Diameter)

View attachment 30319

Measurements are best when taken with calipers and here are some classifications of head shapes below,

<75 (Dolichocephalic): Long and Narrow Head.

75-80 (Mesocephalic): Average or Oval Shaped Head.

>80 (Brachycephalic): Short and Broad Head.

In order to measure, you must take your calipers and place one end in between the eyebrows and the other on the most prominent part of the back of the head (This is how to find length).

View attachment 30327

Now I'm order to find the width you'd want to measure from the widest points on the sides of the head (Blue Line).

View attachment 30329

View attachment 30332

Robustness:

I wont go over this too much as I feel like I talked about it in the last two sections. Robustness refers to ones physical strength and thickness in bone structure, in our case relating to the skull.

Robustness = Bigger skulls, wider jaws and faces, more prominent bones, bigger bodies.

Reduction = Essentially the opposite of robustness just a decrease in robustness which can lead to smaller size and less prominent bone structure.

Facial Index:

Facial Index (FI) refers to the measurement of the face height and width and is a key metric when determining phenotypes. This is the formula for the FI listed below,

Face Height Measurement
FI = ___________________________________ X 100
Face Width Measurement

Classifications,

Hyper-euryprosopic <80 FI

Euryprosopic 80-85 FI


Mesoprosopic 85-90 FI

Leptoprosopic 90-95 FI

Hyper-leptoprosopic >95 FI


View attachment 30340

Nasal Index:

This is a measurement taken on the nose and is Important when classifying inter racial people. Here is the formula below,

Nasal Width
NI = __________________________ X 100
Nasal Height

Classifications,

View attachment 30341

These measurements are often taken with calipers, measuring the width at its widest point while the height is measured from the nasian to the subnasian point.

View attachment 30342

Hair:

There is a lot when it comes to hair, it shows evolutionary traits and can be a good tool when identifying.

Coily

Curly

Wavy

Straight

The coily hair type came to be because of hot,dry climates and was a thermoregulatory mechanism for early humans View attachment 30352

Similarly to Coily hair curly hair evolved to be a thermoregulatory tool for early humans allowing for better scalp cooling and reduced water loss
View attachment 30358

Moving down the spectrum we have wavy hair, wavy hair came to be when it evolved due to the need for scalp temperature management (cooler temps were better) and also natural shielding from UV so it's similar to Coily and curly.
View attachment 30360

Lastly we have straight hair, moving away from the equator straight hair evolved for heat retention while also letting more UV penetrate allowing for better vitamin D absorption and warmth.
View attachment 30362

Also hair color can be a good tool when classifying phenotypes as it is highly hereditary. It can be used to determine melanin levels or locations of origins (Ex. Lots of Irish people being red headed).

View attachment 30365

Conclusion:

I'm going to wrap up the thread here, this is a list of tools you can use when classifying, however some tools here are better than others

Thank you for reading:feelsyay:

Leave a rep of you enjoyed :cheers::bigbrain:

Until next time bhais♥️
amazing
 

sjzso

Mumbaian Anus Stretching or LDAR
Joined
Oct 9, 2025
Posts
1,250
Reputation
3,143
jus go by nose and ears development, brow shape , and cupid bow lol skip all this bullshit nih cage if u classify by measurements 😹😹 NIH boutta classify using hair n coloring ye bro just give up, n gtfo maybe few ppl there r actually smart enough to classify instead of just saying mirin mirin lmao
 

inhibitioncel

That lonercel
Joined
Sep 30, 2025
Posts
252
Reputation
235
how are people agreeing with this bullshit :banderas:
good thread I like some of the info
I DID find this cool
amazing love it. thanks for tag
mirinn effort bhai and thanks for being first one tagged😊
Nice thread now i can be a pro rasict
good thread
mirin

pinned
Thread lools good either way
nice thread
Thanks for the tag I did in fact find this cool
Looks amazing, bookmarked I’ll read later
great thread, my love:AYAYASmile:
all of yall got 0 logical thinking
:kim:

this pseudoscience has been debunked by modern anthropologists ages ago.

 

Godveil Heir

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how are people agreeing with this bullshit :banderas:













all of yall got 0 logical thinking
:kim:

this pseudoscience has been debunked by modern anthropologists ages ago.
View attachment 30716

33372541.jpg
 

inhibitioncel

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anyone from any heritage/ethnicity n race can develope any cranial structure and that should be common knowledge nowadays.
https://www.nature.com/articles/s41598-024-76715-0
https://www.sciencedirect.com/science/article/pii/S1631068317300362
https://link.springer.com/article/10.1007/s11692-012-9210-7
https://link.springer.com/article/10.1007/s12520-025-02207-5
https://pubmed.ncbi.nlm.nih.gov/19166470/


his asshole
:no:


There's no source
This retard just heard "phenotype" & confused it with physiognomy and phrenology
:obama:

says the guy that goes against scientific evidence
:respect:
 

Godveil Heir

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Godveil Heir

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anyone from any heritage/ethnicity n race can develope any cranial structure and that should be common knowledge nowadays.
:caaage:
Of course, spectrum exists nigger. This does not deny the existence of phenotypes.
Although red and yellow can be included in the spectrum, this does not imply that they do not exist as distinct colors.

1771686718157.png

You can tell the difference between an Asian and an African man based on phenotypes. Just because a Black man has a thin, long nose, it doesn't mean Persians and Black people look the same or lack distinctive facial features.
 

inhibitioncel

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Of course, spectrum exists nigger. This does not deny the existence of phenotypes.
great reading capabilities
:tom:

what im saying is that an eurafricanid is able to develope the same cranial structure as a west alpinid although .net completely disregards that (which this thread is based off)

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these 2 can have the same exact features due to environment.

look alfredo de la cruz is west alpinid but .net entirely refuses that believe bc its outdated.
1771687201736.png
1771687205852.png

youre gonna see the same cranial structure and say "muhh hes EA" whilst all his non environmental features literally scream west alpinid.
 

Godveil Heir

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these 2 can have the same exact features due to environment.
straight up false jfl
look alfredo de la cruz is west alpinid but .net entirely refuses that believe bc its outdated.
it's not the norm
facial features are genetic, some just carry recessive dna
or genetic recomp blesses them

youre gonna see the same cranial structure and say "muhh hes EA" whilst all his non environmental features literally scream west alpinid.
1771687431804.png

His mother must've been devoid of sunlight while he was in the womb, that's why he has blue eyes, right?
not like his ancestry carried the gene and he got lucky in the genetic recomp

no environmental factors are giving your phenotype
 

inhibitioncel

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straight up false jfl
sure keep on neglecting science, go get sum biology classes.

View attachment 30737
His mother must've been devoid of sunlight while he was in the womb, that's why he has blue eyes, right?
not like his ancestry carried the gene and he got lucky in the genetic recomp
thanks for disproving OP, if you knew how to read properly than you'd know that this is one my points.

sit your recessed ass back and read sum science faggot.

the way OP classifies doesnt justify ancestry at all.
 

Godveil Heir

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sure keep on neglecting science, go get sum biology classes.


thanks for disproving OP, if you knew how to read properly than you'd know that this is one my points.

sit your recessed ass back and read sum science faggot.

the way OP classifies doesnt justify ancestry at all.
you're so retarded

might aswell deny height prediction with your reasoning then
genetic recomp pushing a trait outside average is rare exception
it doesn't mean you can't tell ancestry and phenotype
 

inhibitioncel

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you're so retarded

might aswell deny height prediction with your reasoning then
genetic recomp pushing a trait outside average is rare exception
it doesn't mean you can't tell ancestry and phenotype
learn sum comprehension moron.

the way that OP classifies is completely unreliable.
classify using; cupid bow, eyebrow shape, nose shape, ear shape and last name
 

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