Lucy

"Lucy" is one of the most complete skeletons found to date from the early hominids that flourished between 4 and 2 million years ago. The skeleton consists of bones from a single individual, presumably female, who stood well under 4 feet tall.

Discovered by scientists in 1974, the 3.18-million-year-old Lucy was named after the Beatles song "Lucy in the Sky with Diamonds," which the researchers listened to as they celebrated their remarkable find.