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An asteroid strike 66 million years ago devastated the dinosaurs. But today's birds are proof there were a few survivors.

The theory of evolution explains how the enormous variety of life could come into existence. How it is possible for primitive life forms to spawn the millions of different creatures, that exist today.

You may take them for granted, but your teeth are a marvel. They break up all your food over the course of your life, while being strong enough to withstand breakage themselves. How do they do it?

Why do we love people we're related to? Compared to strangers, why do we feel such a deep sense of connection with our family members? Sure, they're nice to us, we take care of each other, and we often live with them, but there has to be a deeper biological reason. That reason, unsurprisingly is evolution. In this video, I explain why taking care of our family, or even dying for them, makes sense in the eyes of evolution.

Your body is walking proof of evolution, but some parts have grown unnecessary over time. Here are five useless body parts left over from evolution.

Why do humans cook? Holidays are celebrated in many ways, but chances are they involve eating, and eating a LOT. Ever wonder why we cook our food? We do it because it tastes good, of course, and because our customs and traditions are built around it. But we also cook our food for some basic biological reasons, because of evolution. Some scientists think that figuring out how to cook actually MADE us human! If conversation gets a little dry around your holiday table, now you'll have some awesome science to share with everyone!

You have your mom's smile, your dad's eyes, and the ear muscles of a Triassic mammal.

Watch the evolution of our species in under two minutes. Learn how paleoartist John Gurche draws on fossil discoveries and forensic techniques to create transfixing reconstructions of long-lost human ancestors.

How does evolution really work? Actually, not how some of our common evolutionary metaphors would have us believe. For instance, it's species, not individual organisms, that adapt to produce evolution, and genes don't "want" to be passed on -- a gene can't want anything at all! Alex Gendler sets the record straight on the finer points of evolution.

Greg Foot tries to dive into the topic of Evolution; looking at why monkeys exist, who our common ancestor is, and how we branched away to become a new species.

Why does music make us feel happy or sad? Or angry or romantic? How can simple sound waves cause so much emotion? I went from my comfy chair to the streets of Austin to investigate how it might be written into our neuroscience and evolution. Modern neuroscience says our brains may be wired to pick certain emotions out of music because they remind us of how people move!

This fall, the Cornell Lab of Ornithology and National Geographic are bringing the Birds-of-Paradise Project to the public. Get an advance look now...and witness diverse strategies of evolution at work and experience one of nature's extraordinary wonders - up close.