NARRATOR: One question: "Why is there such a stunning diversity of life?" One answer: "Evolution: Charles Darwin's brilliant theory that explains how species adapt and change." It's been called the ...

From fruit flies to snake venom, evolutionary biologist Sean Carroll explains what drives evolution. How does evolution invent entirely new things, like limbs, wings, and venom? Evolutionary biologist ...

Find out if you're part Neanderthal, about the evolution of laughter, what language may owe to tool-making, and more. (Program not available for streaming.) Scientists have struggled for centuries to ...

Fossils can tell us a lot about human evolution but still leave many questions unanswered. Now, there's another source of information—though it's not for the squeamish. After sucking our blood for ...