[amateurCoder5]

Africa doesn't have East-West orientation, it extends across the tropics and into the North and South temperate regions.

[worik]

Look at a map

It has a huge east west extent

https://images.newscientist.com/wp-content/uploads/2018/08/1...

[haroldp]

You are being very silly. North Africa is oriented East-West in a way that allowed it to participate in the easy exchange of flora, fauna, culture and technology with the greater East-West zone that extends from Portugal to China. Saharan Africa is dominated by the Sahara Desert, which is a huge barrier to exchange. Sub-Saharan Africa is oriented mainly North-South, in comparison with the greater Mediterranean exchange region the Diamond outlines.

https://upload.wikimedia.org/wikipedia/commons/thumb/6/61/Eq...