in africa it's very hot, no need to store fat (energy) for the long winter. and for that matter, no need to store bodyfat to insulate for the cold = ripped to shreds. That's also why asians and whites (colder region people) store bodyfat all over their body, to insulate, whereas blacks and mexicans (in warmer climates) store fat only in their belly. Haven't you seen those fat mexican and black women with tiny arms and legs?