The findings, published in the journal Genome Biology and Evolution, show that woolly rhinos remained "genetically healthy" until the end of the last Ice Age. Scientists say the species therefore ...

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 ...

Koalas with the bodies of lions. Elephants the size of your dog. Gigantic, 8-foot-tall sloths. These aren’t creatures found in science fiction: They walked our planet a million years ago, during the ...