One of the earliest things American children are taught is how to count items out loud. But how much do we understand about numbers before we learn this vocabulary?

We went to the North Carolina Zoo to meet the chimpanzees -- and evolutionary anthropologist Brian Hare. Here's what happened...

British geneticist Steve Jones has lately made the provocative assertion that human evolution is coming to its end. What do you think?

Watch Tanya Chartrand describe what it was like for her as a scientist to be involved in a television shoot for "The Human Spark."

In an article in the journal Current Biology researchers describe directly observing bonobos hunting not just small forest creatures but other primates as well.