Add Yahoo as a preferred source to see more of our stories on Google. Platypuses are monotremes, one of the oldest branches of mammals, and they reproduce by laying eggs instead of giving birth to ...

You've heard of the Great White and the Hammerhead—but what about the lesser known but equally fierce sharks? Join Hank Green ...

The platypus is one of the strangest animals on Earth, combining traits of mammals, birds, and reptiles. This video explores its insane biology and why scientists are still baffled by it. Design ...

Nature doesn’t always play by the rules. For every majestic lion or elegant eagle, there’s a creature so bizarre it looks like a science experiment gone rogue. Some animals are evolutionary oddities, ...

An odd crocodile relative, Sonselasuchus cedrus, walked on four legs as a baby and two as an adult - a huge transformation ...