Fossilized footprints in Kenya's Turkana Basin reveal that two distinct hominin species coexisted 1.5 million years ago.
Paranthropus boisei, nicknamed 'Nutcracker Man', and our ancestor Homo erectus left their marks very close together.
The close proximity of the footprints in time and space suggests a shared landscape and resources, perhaps even tolerance.
This discovery offers a rare snapshot of early human interactions, raising questions about their social dynamics and environmental pressures.
