Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are ...

The findings, published in the journal Genome Biology and Evolution, show that woolly rhinos remained "genetically healthy" ...

The contents of an ancient wolf pup's stomach yields surprising clues into the genetic lineage of extinct species.

Previous research indicated that kangaroos weighing more than about 350 pounds would rupture their ankle tendons if they tried to hop. The largest of the Ice Age kangaroos, Procoptodon goliah, which ...

When Swedish scientists examined the stomach contents of 14,400-year-old Ice Age wolf remains they discovered DNA from a ...

DNA found inside an Ice Age wolf challenges what we thought about how woolly rhinos died out.

Little is known about why the woolly rhinoceros went extinct around 14,000 years ago. Scientists have found clues in the frozen remains of an ice age wolf.

For decades, scientists have studied the DNA of long-extinct animals found frozen in permafrost. However, researchers from the Centre for Palaeogenetics in Stockholm, Sweden, have just completed a ...

Just because a species is presumed extinct doesn’t mean it’s gone forever. Here are four glowing examples of this unique, and felicitous, phenomenon. Not all species that have been classified as ...

One of Earth’s earliest mass extinctions wiped out most ocean life during a sudden global ice age. From the ruins, jawed vertebrates survived, diversified, and transformed the course of evolution.