This is Ardi. She is 4.4 million years old.
We don’t have very much of her skull.
But we have lots of her teeth.
But we have enough of her hands and feet to know that she walked with a flat foot with her toes pointed outward. She still climbed a lot of trees but probably wasn’t as graceful climbing as chimpanzees are.
This is Lucy. She lived 3.15 million years ago. She was the first substantial hominid skeleton found.
This is Selam. She is the same species as Lucy but lived 3.3 million years ago. She was only 3 years old when she died.
This is what her skull looked like before it was fully excavated.
And here it is now.
