In 1931, at the age of 28, Louis Leakey made his first trip to Olduvai Gorge, in what is now Tanzania. His goal: to prove that Africa – specifically East Africa, where he had been born and grown ...

Brown plastic cast cranium of Olduvai Hominid 5 (OH 5), also known as "Nutcracker Man," from the species Paranthropus boisei. OH 5 is easily the most famous of the early human fossils found at Olduvai ...

In 1931, at the age of 28, Louis Leakey made his first trip to Olduvai Gorge, in what is now Tanzania. His goal: to prove that Africa – specifically East Africa, where he had been born and grown ...