The scientists suggest the ancestors of today's lemurs colonised the island not once, but twice, and much later than we thought - perhaps around 20 million years ago. The aye-aye arose from one ...

Recruit: Aye, aye, sir! Aye, aye, sir! Aye, aye, sir! Aye, aye, sir! Narrator: This is Marine Corps boot camp in Parris Island, South Carolina. Before they become United States Marines ...