Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A peculiar fossil ...

A new fossil, named 'Attenborough's strange bird' after naturalist and documentarian Sir David Attenborough, is the first of its kind to evolve a toothless beak. It's from a branch of the bird family ...

Everyone knows what a bird is – and pretty much everyone knows what a dinosaur is. But not everyone is aware that birds evolved from dinosaurs approximately 160 million years ago. In fact, birds and ...

Thanks to seeds and toothless beaks, today's birds' ancient ancestors survived periods of mass extinction while their land-based counterparts went extinct. A recent research has found that munching on ...

Fossils of a species of dinosaur that lived 160 million years ago in China may help explain why birds have toothless beaks. The two-legged Limusaurus inextricabilis was born with teeth but the ostrich ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Everyone knows what a bird is – and pretty much ...