Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The story of two of ...

Scientists have discovered fossils in China that reveal a crucial transition from simple to complex life on Earth. These ...

A new study reveals how squid and cuttlefish began in the deep sea and survived Earth’s biggest extinction to thrive ...

Animals that adapt behaviorally may evolve physically more slowly, showing resilience rather than weakness in changing ...

A fossil bed in China containing animals up to 554 million years old suggests that we may have to reconsider the idea that ...

Sponges may be ancient, but their timeline has been murky. New research suggests the earliest sponges were soft and skeleton-free, explaining why their fossils don’t appear until much later. By ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist’s impression depicts Kryoryctes at Dinosaur Cove in Australia. New research supports the hypothesis that Kryoryctes is a ...

(CNN) — The story of two of the strangest animals on the planet just got a little stranger, thanks to clues revealed by a lone fossil specimen that scientists now say represents a long-extinct ...