Recent research reveals the possibility that our early human ancestors possessed special skills as long distance runners. The theory, recently proposed by Dennis Bramble of the University of Utah and Daniel Lieberman of Harvard University, suggests that early humans, though poor sprinters, were skilled long-distance runners.

Their theory points to evidence still visible in our anatomy such as well-developed coordination, strong knee joints, large buttocks, ligaments that cushion and spring movement, and flexible Achilles tendons.

The reason our ancestors developed the ability for long distance running is still unclear. Some possible explanations are that early humans ran for long periods of time in search of food or perhaps pursued prey until the prey tired and were easier to capture.

Find out more:

• Running 'Key to Human Evolution' (BBC News)
• Endurance Running May Be Key to Evolution of Human Body Form (EurekAlert)
• Humans Were Born to Run, Fossil Study Suggests (National Geographic)