Add Yahoo as a preferred source to see more of our stories on Google. A microscopic animal has come back to life and successfully reproduced after being frozen for 24,000 years, according to a study ...

A lot has changed on Earth in just the last few decades, but for a recently revived microscopic creature, it has tens of thousands of years to catch up on. In a new study published this week in the ...

Bdelloid rotifers are multicellular animals so small you need a microscope to see them. Despite their size, they're known for being tough, capable of surviving through drying, freezing, starvation, ...

This podcast originally aired on August 17, 2021. Karen Hopkin: This is Scientific American's Science, Quickly. I'm Karen Hopkin. What has one head, one foot and one heck of an origin story? No, it’s ...

A female Brachionus manjavacas rotifer, as magnified under a microscope. This rotifer is 350 µm long; about the size of a grain of sand. The hair-like cilia at the top of the individual are used for ...

A lone rotifer has awakened after spending the past 24,000 years in frozen hibernation. Scientists hope that further studies of this multicellular animal may lead to better ways of cryopreserving ...