Microfossils from Mongolia suggest the first animals may be up to 200 million years older than their oldest clear fossils, a new study finds.

An Oxford-led team reworked the molecular clock for animal origins and landed on 800 to 700 million years ago, near the start of Earth's ice ages.

Your pet may not be able to speak, but that doesn’t mean you two can’t find ways to communicate. Here’s how to talk and listen to the beloved animals in your life, according to experts.

The earliest animals may have evolved hundreds of millions of years before their first unmistakable fossils appear in the ...

With a new database of medical images, zoo and wildlife vets can finally see what healthy uncommon animals, from rhinos and tamarins to pangolins and sea stars, should look like on the inside. With a ...

How do animal behavior researchers feel about the feelings of animals? A new survey helps to answer that question. The journal Royal Society Open Science published a survey of 100 researchers of ...

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Experimenting on animals is a dark side of science and research. And most of us try not to think about the animals that ...

The Master of Laboratory Animal Science (MLAS) degree program in the Stanford University Department of Comparative Medicine is a graduate program designed for students who want to pursue advanced ...