Early Indian Ocean trade routes bring chicken, black rat to eastern Africa

Thursday, August 17, 2017 - 13:02 in Paleontology & Archaeology

The earliest introduction of domestic chickens and black rats from Asia to the east coast of Africa came via maritime routes between the 7th and 8th centuries AD. In a paper published August 17, 2017 in the journal PLOS ONE, an international team of researchers, led by Director Nicole Boivin of the Max Planck Institute for the Science of Human History, used new techniques to analyze ancient DNA and proteins from 496 bone samples from 22 island, coastal and inland sites in eastern Africa. The earliest confirmed samples of chickens and rats were found at open-air island port sites, suggesting the animals were introduced by traders engaged in the robust Indian Ocean maritime trade, and subsequently spread inland.

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