If you’re a chimp, making friends is straightforward – put in some time grooming your buddy and hopefully you’ll stay on his good side. Not so for humans.

Which came first – the running or the brain? Running could be the reason humans were able to hunt large game and consume the protein needed for a big brain.

In this video, Laurie Santos pulls a switcheroo on her monkey research subjects. Will they notice when a fruit that starts rolling down a plank as a kiwi reaches the bottom as a lime?

A new study looked at how macaque monkeys respond to other monkeys’ efforts at communication in the form of drumming or vocalizing.

For John Shea, the way we posed our questions about the human spark got him pondering the evolution of our human uniqueness in a new way.

Here John Shea shares a bit more about his research interests – and what it’s like to be interviewed for television!

John Shea at Stony Brook University is keeping alive the stone toolmaking technologies used by our most ancient ancestors.

Dr. Svante Pääbo, an evolutionary biologist featured in The Human Spark, was recently awarded the 2009 Kistler Prize. Watch video of Dr. Pääbo with Alan Alda.

Scientists are attacking the question of how we became human from a number of new directions – in addition to analyzing the evidence of ancient fossils.

Psychologist Vicky Horner discusses research into chimpanzee cultural transmission. Do chimps have "culture" like humans?