Bertha Gigglesworth on A Better Way with Dr Tess Lawrie

[Bertha Gigglesworth]

As far as I know, the most popular theory regarding hairlessnes is that it aided perspiration. It is believed this part of evolution took part in a savannahs environment with little tree cover. Early humans were possibly endurance hunters, tracking down animals over very long time. Most mammals regulate their temperature by panting. We sweat, lack of hair helps evaporation and this makes it a very efficient way of cooling down. Bushman in the south of Afrika still hunt in this way.