About 3.2 million years ago, among the prehistoric forests of what is now Ethiopia, a small human was folded into the fossil record. No one knows for sure what killed them. Perhaps it was a fall from a tree.

Lucy may be the best-known prehuman fossil in the world. But other famous fossils have given us important insight into our evolutionary history.

It was already pretty hot by the time Donald Johanson and his graduate student, Tom Gray, arrived at the site at Hadar, Ethiopia, on the morning of November 24, 1974. The two had initially set out to map the location but decided to have a look around for any signs of fossils while they were there.

Stunning Discovery of ‘Lucy’ Fossil Revealed Humans Were Walking On Feet 3.2 Million Years Ago Experts find human evolution a complicated subject. Over the years, with discoveries worldwide, the subject of evolution has garnered more clarity.