In a groundbreaking discovery, footprints from 1.5 million years ago have revealed that Homo erectus and Paranthropus boisei coexisted in Kenya. The fossilised tracks, found at Koobi Fora, show distinctive foot structures, with Homo erectus leaving footprints similar to modern humans, while Paranthropus boisei’s tracks reflect a different walking pattern.In a groundbreaking discovery, footprints from 1.5 million years ago have revealed that Homo erectus and Paranthropus boisei coexisted in Kenya. The fossilised tracks, found at Koobi Fora, show distinctive foot structures, with Homo erectus leaving footprints similar to modern humans, while Paranthropus boisei’s tracks reflect a different walking pattern.