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The Savanna Theory suggests that nature selected humans for shorter and thinner body hair as part of a fixed of adaptations to the warm plains of the African savanna (in annex to bipedal locomotion and an upright posture)
- Some hold that there are handful problems with this feeling (including balding), not least of which is that cursorial hunting is nearly new by other animals that do not show any thinning of hair
- This on condition them with time to adjust to the intense UV and sunlight by expedient of other means (such as panting)
- Hominids, on the other hand, originally possessed fur, but, due to a relatively sudden spending money in air 2.5 million years ago (due to hominid inventiveness/technological innovation) that involved intense hunting during the day, they developed sweat glands that enabled them to perspire
- This conversion necessitated the loss of most shaft hair in order to facilitate sweat evaporation (i.e
- cool the body)
- Furthermore, balding exceptionally occurs at around 30 - 40 years of age.
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Evolutionary biologists suggest that the genus Homo arose in East Africa approximately 2.5 million years ago (Jablonski, 2006) |
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| During this hour modish hunting techniques were innovated (Jablonski, 2006) |
| The break protein diet led to the change of larger body and brain sizes (Jablonski, 2006) |
| Jablonski (2006) postulates that accrual body size, in conjunction with intensified hunting during the bright at Page the equator, gave rise to a greater need to rapidly expel heat |
| As a result, humans developed the ability to sweat and thus lost shape hair to facilitate this outgrowth (Jablonski, 2006). |