The larger sloths didn’t do much tree climbing, at risk of falling to their deaths. Instead, they survived by being ...

Asian small-clawed otters are top predators in wetlands and mangroves. Image by Cloudtail the Snow Leopard via Flickr (CC BY-NC-ND 2.0). In their study, the researchers analyzed DNA samples from ...

Scientists have analyzed ancient DNA and compared more than 400 fossils from 17 natural history museums to figure out how and why extinct sloths got so big.

Scientists have identified a new pod of ancient people who lived near the land bridge between North America and South America ...

Asian and African elephants, though related, exhibit key differences. African elephants are larger with fan-shaped ears and ...

A survey of the larvae of Japanese wasps revealed that not only is their diet more diverse than previously thought, it also ...

Over thousands of years, humans from Eurasia trekked more than 12,400 miles to eventually reach the southernmost tip of South ...

Recursion is when something is built from smaller parts that follow the same pattern. For example, in language, a sentence ...

Scientists have identified sequences in great apes' DNA capable of forming unconventional structures called non-B DNA. These ...

Genetic research on the rare saola shows two populations with valuable diversity. Combining them in a breeding program could ...

Selective chromatid identity might be generated by local (for example, centromeric) or global epigenetic marks placed on the DNA. These include methylation patterns, histones and differentially ...