The hunters searching for mammoth tusks were drawn to the steep riverbank by a deposit of ancient bones. To their astonishment, they discovered an Ice Age puppy’s snout peeking out from the permafrost. Five years later, a pair of puppies perfectly preserved in Russia’s far northeast region of Yakutia and dating back 12,460 years has mobilised scientists across the world. “To find a carnivorous mammal intact with skin, fur and internal organs - this has never happened before in history,” said Sergei Fyodorov, head of exhibitions at the Mammoth Museum of the North-Eastern Federal University in the regional capital of...