Add Yahoo as a preferred source to see more of our stories on Google. Once upon a time, there were a bunch of one-celled microbes, swimming, eating, reproducing, doing all the things that a one-cell ...

An artist’s impression depicts Kryoryctes at Dinosaur Cove in Australia. New research supports the hypothesis that Kryoryctes is a common ancestor of both the platypus and echidna. - Peter Schouten ...

Animals don't just see the world differently from one another, they experience time itself at dramatically different speeds.

The study provides new insights into the functions of ancestral cortices but also raises fundamental questions about how and ...

A microorganism whose evolutionary roots can be traced to the era of the first multicellular animals may provide a glimpse of how single-celled organisms made a critical evolutionary leap. In ...

The evolution of some of the earliest complex animals on our planet may have been spurred on by other, simpler early animals. These simple marine animals first evolved around 560 million years ago and ...

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 ...

In five cases where vertebrates evolved monogamy, the same changes in gene expression occurred each time. In many non-monogamous species, females provide all or most of the offspring care. In ...

Ronan the sea lion can dance to a lot of different songs, but there is something about “Boogie Wonderland,” by Earth, Wind and Fire that really gets her going. It didn’t take more than a few days for ...

Sphen and Magic, two male Gentoo penguins, recently made headlines when they ‘adopted’ an egg. Gentoos are closely related to Adélie penguins, the species Levick first observed in 1911. After the two ...

Some animals are evolving faster than scientists previously thought possible, due to climate change. We can too.

To understand the origins of multicelled life, researchers are studying a motley assortment of simpler animal relatives. The commonalities they’re unearthing offer a trove of clues about our mutual ...