Pastoralism is a central part of many Africans' identity. But how and when did this way of life get started on the continent? Ancient DNA can reveal how herding populations spread.
What do traditional Maasai people use mobile phones for?
Herding behaviour is leading to excessive borrowing, further fuelling apartment prices, particularly in Sydney.
New research upends the previous theory that tsetse flies – and the disease they carry – were the main reason the spread of livestock domestication in Africa stalled out for a thousand years.