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 ...

Rotifers are multicellular, microscopic marine animals that live in soils and freshwater environments. They are transparent and can be easily grown in large numbers. As such, they have been used in ...

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 ...

DNA carries the blueprint for building bodies, but it’s a living document: Adjustments to the design can be made by epigenetic marks. In humans and other eukaryotes, two principal epigenetic marks are ...

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 ...