When animals have shiny feathers or fur, it's usually for some sort of visual display or communication. But what about fauna that lives underground?
Human babies are, relative to the size of their mothers, about twice as big as chimpanzee babies. Our evolutionary growth spurt might have forced mothers to give up living in the trees, changing human social dynamics forever.
Life has been around for billions of years, but it's only about 580 million years ago that organisms start leaving behind fossils. But our modern genes provide a window into the past, revealing how life developed billions of years ago.
Pandas are famously peaceful creatures, content to sit around quietly eating bamboo. But millions of years ago, they were as fierce and carnivorous as the rest of their bear relatives. It's all a question of changing environments and shifting genes.
The complex evolutionary relationships between birds and dinosaurs has only really started to become clear in the last 15 years. But one brave thinker in 1897 knew the real truth: it was all down to birds and reptiles doing it.
For centuries, a group of Native Mexicans have poisoned and harvested cavefish as part of an annual ceremony. Now the cavefish have gotten wise, as they have evolved increased resistance to the deadly toxins in order to adapt and survive.
India and China's plates smashed into each other 55 million years ago, and this collision ultimately created the Himalayas, home to the world's biggest mountains..but we weren't exactly sure when this part happened. Now, thanks to frog genes, we know.
Twelve millennia of selective breeding have created hundreds of distinct dog breeds, yet they're still all one species - even a chihuahua and Great Dane could successfully interbreed. But all those physical changes have deeply altered how dogs' brains work.
Brace yourselves, Battlestar fans: in real life Starbuck would probably be ugly as sin. Think more like a Ferengi, less like a supermodel. So would anyone else from the 12 Colonies, most likely. That's the implication of a new study of evolution here on Earth, which shows that natural selection can work at break-neck…