(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 ...

A study has found that the reason why the evolution of the first animals to appear on Earth was delayed for over 10 million years was due to their reproductive methods. Early animals reproduced by ...

Animals from completely different branches of the tree of life, such as insects, worms and vertebrates, independently evolved similar genetic solutions to survive on land, according to a new study ...

From butterflies to blue whales, corals and worms, Earth is home to an incredible diversity of animals. How all of these animals evolved from earlier, simpler ancestors is one of the most exciting ...

In this Review, we summarize recent findings from studies of diverse eukaryotes, especially early-branching animals and close relatives of animals. More specifically, we consider the best available ...

A huge and beautifully preserved suite of fossils discovered in China has cast doubt on the idea that complex life flourished dramatically during a rapid burst of evolution known as the Cambrian ...

Newly discovered fossils in southwestern China provide scientists with unprecedented insight into the evolution of complex animals on Earth, marking a significant transition from simple life forms.

Embryonic germ layers are the fundamental organizing principle in animal development. They provide the structural basis from which tissues and organs arise. During early embryogenesis, cells divide to ...

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 ...

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