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 ...

Fossils from China reveal complex animals existed before the Cambrian explosion, reshaping the timeline of early animal ...

Animal life began in aquatic environments more than 600 million years ago. Around 500 million years ago, during the Cambrian ...

Until now, there was a conflict in the field of paleontology. Genetic analysis of how fast traits mutated and evolved ...

The transition from water to land is a question that still intrigues scientists. Those ancient organisms would have needed to adapt to several new challenges to life out of water. So, how did they do ...

Newly discovered fossils have given scientists their first real glimpse of when Earth made a crucial transition from plants and unrecognizably simple animals to the complex creatures 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 ...

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

Quick Take The discovery of the sea sponge order Vilesida and its unique sterols supports the hypothesis that animals may ...

The Cambrian Explosion in which life on Earth underwent massive diversification was likely triggered by eccentricities in Earth’s orbit around our Sun. Or so say the authors of a new paper just ...

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 ...