But the true size and shape of this extinct giant probably doesn't resemble the star of "Jaws." Scientists have long debated the true size of the megalodon (Otodus megalodon), which went extinct ...

With curly whiskers and wavy, light hair that grows three times longer than that of an ordinary lab mouse, the genetically modified rodent embodies several woolly mammoth-like traits, according to ...

One of my favourite extinct species is a thing ... Meanwhile, the giant beaver, named Castoroides, was an enormous rodent that also lived in North America during the Pleistocene, vanishing around ...

The skull of a black rat (right) compared with a fairly complete skull of one of Timor's other extinct giant rats (left). The giant rat shown here isn't the biggest of the extinct rats ...

With curly whiskers and wavy, light hair that grows three times longer than that of an ordinary lab mouse, the genetically modified rodent embodies ... mammoth and other extinct animals.

It is believed to have gone extinct in the early 20th century. The scientists analyzed DNA extracted from the remains of a giant wolf and a Japanese wolf, both found in Sano, Tochigi Prefecture.