Livestock, like these goats in the Rift Valley of Tanzania, are critical to household economies in East Africa.
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.
New technology means accessing new information from ancient human remains, some which have been in collections for decades.
Ancient DNA allows scientists to learn directly from the remains of people from the past. As this new field takes off, researchers are figuring out how to ethically work with ancient samples and each other.
A three-dimensional volume rendering of the Tuli mummy.
SA Journal of Science
Modern techniques such as CT scanning and ancient DNA analysis have allowed scientists to discover a great deal about a mummy found in a shallow grave in Botswana.