Russian scientists claim to have discovered blood in the carcass of a woolly mammoth, adding that the rare find could boost their chances of cloning the prehistoric animal.
An expedition led by Russian scientists earlier this month uncovered the well-preserved carcass of a female mammoth on a remote island in the Arctic Ocean.
Semyon Grigoryev, the head of the expedition, said the animal died at the age of around 60 some 10,000 to 15,000 years ago, and that it was the first time that an old female had been found.
But what was more surprising was that the carcass was so well preserved that it still had blood and muscle tissue.
"When we broke the ice beneath her stomach, the blood flowed out from there, it was very dark," Professor Grigoryev, who is a scientist at the Yakutsk-based Northeastern Federal University, said.
"This is the most astonishing case in my entire life. How was it possible for it to remain in liquid form? And the muscle tissue is also red, the colour of fresh meat," he added.