• We have big brains, but are we born with big brains or do they get big as we grow up? It turns out that it’s a little bit of both. Learn about how our incredible brains grow and find out what limits our brain size. Also in: Español

Ask An Anthropologist

Ask An Anthropologist is an educational resource for students, teachers, parents, and life-long learners. We encourage anyone interested in anthropology to make use of its content.

Becoming Human Logo

Powered by Becoming Human

Becoming human brings together interactive multimedia, research and scholarship to promote greater understanding of the course of human evolution.

Learn about William Kimbel and the brainy branch of human evolution

The Brainy Branch

Our species, Homo sapiens, are incredibly unique among the species on Earth today.

Two hands holding a straw without using thier thumbs

Thumbs Up

When you tape down your thumb, you’ll get a sense of how hard it would be to do many things if our hands were shaped differently. Even a simple task like placing a straw in a bottle becomes difficult!
Tales of Teeth - photo of ancient tooth

The Tales of Teeth

You are sitting in a dark movie theater. You are trying to enjoy the movie, but you keep thinking about a pesky piece of popcorn stuck between your molars, the back teeth. After fumbling for a toothpick in your pocket, you dislodge the popcorn.

Link Tools in the Stone Age

Chipping Away: Tools in the Stone Age

Since long ago, the survival of our ancestors has depended in part on technology. Even today, the shoes you put on and the car you drive are both built on previous discoveries. We can trace human technological developments way back to over three million years ago.