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1.5 million-year-old footprints reveal our Homo erectus ancestors lived with a 2nd proto-human species

Live Science
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1.5 million - year-old footprints prove two different species coexisted in Kenya .

The tracks hint that the species may have interacted, raising new questions about the behavior of our ancestors.

The footprints were found at the site of Koobi Fora on the eastern shore of Lake Turkana in 2021 .

"It is fascinating to think about what they would have thought when they saw each other, and how they would have interacted," Hatala said. Kristina Killgrove is a staff writer at Live Science with a focus on archaeology and paleoanthropology news. Her articles have also appeared in venues such as Forbes , Smithsonian , and Mental Floss . Killgrove holds postgraduate degrees in anthropology and classical archaeology and was formerly a university professor and researcher. She has received awards from the Society for American Archaeology and the American Anthropological Association for her science writing..