- Joined
- Jul 1, 2025
Went down this rabbit hole the other night and found some interesting answers. Figured some people here might like to know because we've all noticed it... why do Somalians look like that?
Thin bodies and large foreheads
The short answer is its a form of adaption for desert living but that itself creates additional questions since theres lots of other desert groups that don't have the distinct foreheads. For instance, there are African tribes in the same heat zone that don't have such features (in part because they don't have the same phenotypes as Somalians.) There are also groups of people in other places on earth that live in hotter temperatures who lack the distinct look. One thing that differentiates African's living in hot climates is the type of heat; dry and wet. Wet heat seems to create different phenotypes than dry.
And there are other African tribes that share the same "elongated" forehead look that Somalians made famous. Turns out these groups are all pastoralists. This is an important clue.
Milk Anemia
Turns out that heat alone doesn't really explain the distinct look, but it is in a way related. Large foreheads is actually a symptom of a known condition called the Bahima disease, caused by milk consumption. The other hallmark is iron deficiency, itself caused by the calcium in milk reducing the bodies ability to absorb iron. Large foreheads are a result of excessive red blood cell production caused by excessive consumption of milk especially in early childhood.
The iron deficiency also helps explain the gaunt body type of Somalians, not necessarily an adaption to desert heat.
The land of milk and... more milk.
Turns out that pastoralists have a limited diet created by their nomadic lifestyle, the tend to consume lots of milk to survive. Its lost on most of us because we live in a society thats farmed grains for millennia. But if your life revolves around moving herds of grazers around to consume grasses in areas not suitable for farming you're stuck with eating meat occasionally or milk and milk products regularly. Meat is rare because it can take years to raise an animal and meat is a one time deal, whereas milk production can last for months and a healthy grazer can produce milk for multiple years once matured.
Turns out these "elongated" African tribes have lactose tolerances as high as Western Europeans, a hallmark of milk consumption in adulthood. In fact, there were nomadic tribes in the Somalian region that often survived solely on 5 liters of camels milk per day. This seems impossible but it is in fact a way to survive. It even mirrors ancient legends about the Germanic tribes, as told by the Ancient Romans, and how they didn't farm grains but rather survived on milk products from their herds.
So it turns out that Somalians looking so unique is a result of the people in that region maintaining the pastoral lifestyle much later than other groups like Europeans (who were switched to grain production by various groups like the Ancient Romans.)
Thin bodies and large foreheads
The short answer is its a form of adaption for desert living but that itself creates additional questions since theres lots of other desert groups that don't have the distinct foreheads. For instance, there are African tribes in the same heat zone that don't have such features (in part because they don't have the same phenotypes as Somalians.) There are also groups of people in other places on earth that live in hotter temperatures who lack the distinct look. One thing that differentiates African's living in hot climates is the type of heat; dry and wet. Wet heat seems to create different phenotypes than dry.
And there are other African tribes that share the same "elongated" forehead look that Somalians made famous. Turns out these groups are all pastoralists. This is an important clue.
Milk Anemia
Turns out that heat alone doesn't really explain the distinct look, but it is in a way related. Large foreheads is actually a symptom of a known condition called the Bahima disease, caused by milk consumption. The other hallmark is iron deficiency, itself caused by the calcium in milk reducing the bodies ability to absorb iron. Large foreheads are a result of excessive red blood cell production caused by excessive consumption of milk especially in early childhood.
The iron deficiency also helps explain the gaunt body type of Somalians, not necessarily an adaption to desert heat.
The land of milk and... more milk.
Turns out that pastoralists have a limited diet created by their nomadic lifestyle, the tend to consume lots of milk to survive. Its lost on most of us because we live in a society thats farmed grains for millennia. But if your life revolves around moving herds of grazers around to consume grasses in areas not suitable for farming you're stuck with eating meat occasionally or milk and milk products regularly. Meat is rare because it can take years to raise an animal and meat is a one time deal, whereas milk production can last for months and a healthy grazer can produce milk for multiple years once matured.
Turns out these "elongated" African tribes have lactose tolerances as high as Western Europeans, a hallmark of milk consumption in adulthood. In fact, there were nomadic tribes in the Somalian region that often survived solely on 5 liters of camels milk per day. This seems impossible but it is in fact a way to survive. It even mirrors ancient legends about the Germanic tribes, as told by the Ancient Romans, and how they didn't farm grains but rather survived on milk products from their herds.
So it turns out that Somalians looking so unique is a result of the people in that region maintaining the pastoral lifestyle much later than other groups like Europeans (who were switched to grain production by various groups like the Ancient Romans.)
