Lucy, the name given to one of the most well-known human ancestor fossils, is from the famous Beatles’ song, “Lucy in the Sky with Diamonds.” Lucy was discovered in Ethiopia in 1974 by Dr. Donald Johanson and his graduate assistant Tom Gray. On the evening of the discovery, Johanson played a Beatles cassette in the camp during a celebration of the find, and the name Lucy was inspired by the song. The skeleton of Lucy is that of a hominin, an early ancestor to humans. It is 3.2 million years old and contains several hundred pieces and complete 40 percent of the female skeleton. From the skeleton, paleoanthropologists and other scientists have determined she walked upright most of the time and ate a plant-based diet. Age and cause of death are hard to decide on, but some suggest she was a young but mature specimen, perhaps 12 years old, and might have been killed from a fall from a tree.