Perhaps the most puzzling question Jared Diamond encounters as he investigates animal domestication is: Why were no large mammals ever domesticated in tropical Africa? Africa, south of the Sahara ...

Cement is the backbone of Africa’s infrastructure and economic development, yet its price varies dramatically across the ...

Later theories explained the African puzzle in terms of Africa’s delinking from the world in that the continent accounted for less than three per cent of global travel. But that failed to ...