A boat approaching a small island in the Aegean Sea.  Credit: George Pachantouris / Getty

Imagine ancient hominids sailing the Mediterranean hundreds of thousands of years before humans (Homo sapiens) appeared. The idea might sound bizarre: we think of boats as a human transportation technology, something that, like the wheel, our primitive ancestors developed at the dawn of civilization. So the revelation that a precursor to humans — meaning, a species of closely-related hominids that predate us — may have invented the boat and even sailed the Mediterranean long before us is a shocking proposition. 

Yet that is exactly what new research suggests: hominids crossed the Mediterranean Sea much earlier than previously thought — before even Homo sapiens first appeared — which means these ancient humans must have learned how to sail nearly half a million years ago. The study prompts a shocking re-evaluation of an activity and a technology that seemed distinctly human. 

The first humans and our many hominid cousins like Neanderthals originated in Africa, but it wasn’t long before we wandered off to […]

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