Discovered last year in a lump of frozen mud near the city of Yakutsk, the puppy is unusually well-preserved, with its hair, teeth, whiskers and eyelashes still intact.

"This puppy has all its limbs, pelage – fur, even whiskers. The nose is visible. There are teeth. We can determine due to some data that it is a male," Nikolai Androsov, director of the Northern World private museum where the remains are stored, said at the presentation at the Yakutsk's Mammoth Museum which specializes in ancient specimens.

In recent years, Russia's Far East has provided many riches for scientists studying the remains of ancient animals. As the permafrost melts, affected by climate change, more and more parts of woolly mammoths, canines and other prehistoric animals are being discovered. Often it is mammoth tusk hunters who discover them.

"Why has Yakutia come through a real spate of such unique findings over the last decade? First, it's global warming. It really exists, we feel it, and local people feel it strongly. Winter comes later, spring comes earlier," Sergei Fyodorov, scientist with the North Eastern Federal University, told The Associated Press.

"And the second very serious, deep reason, of why there a lot of finds is the very high price of mammoth tusk in the Chinese market."