Russian scientists have put a prehistoric puppy on display - which could be the oldest domesticated canine in the world.
The animal was found in Siberian permafrost - which preserved the puppy's soft tissues, milk teeth, fur and eyelashes.
But, is it a dog or a wolf?
Scientists say more analysis is needed.
Sergei Fyodorov is the head of exhibits at the mammoth museum in Yakutsk.
(SOUNDBITE) (Russian) HEAD OF EXHIBIT DEPARTMENT OF MAMMOTH MUSEUM, SERGEI FYODOROV, SAYING:
"The permafrost conditions are such that this puppy could have died 100 or 200 years ago. But the radiocarbon analysis conducted in a Stockholm laboratory showed that the puppy died 18,000 years ago."
Researchers believe the puppy, given the name Dogor, died at the age of two months.
In recent years, scientists in Yakutia have found a large number of frozen animals, including a woolly rhino cub and cave lion cubs.