Archive for the ‘wolves’ Category

Dire wolves aren’t wolves at all—they form a distinct lineage with jackals

January 13th, 2021
Two canid skeletons facing each other.

Enlarge (credit: Wikimedia commons)

Dire wolves had a burst of newfound fame with their appearance in Game of Thrones, where they were portrayed as a far larger version of more mundane wolves. Here in the real world, only the largest populations of present-day wolves get as large as the dire wolf, which weighed nearly 70 kilograms. These animals once shared North America—and likely prey—with predators like the smilodon, a saber-toothed cat. Prior to the arrival of humans, dire wolves were far more common than regular wolves, as indicated by the remains found in the La Brea tar seeps, where they outnumber gray wolves by a factor of about 100.

Like the smilodon and many other large North American mammals, the dire wolf vanished during a period of climate change and the arrival of humans to the continent, even as gray wolves and coyotes survived. And with their departure, they left behind a bit of a mystery: what were they?

A new study uses ancient DNA from dire wolf skeletons to determine that they weren't actually wolves and had been genetically isolated from them for millions of years.

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Posted in dire wolves, Dogs, evolution, Genetics, Genomics, paleontology, science, wolves | Comments (0)

Yukon gold miner unearths a mummified Ice Age wolf pup

December 22nd, 2020
Color photo of wolf mummy puppy laying on a pillow

Enlarge / The puppy's remains are dried out but mostly intact thanks to being buried in permafrost. (credit: Government of Yukon)

This Ice Age wolf puppy doesn’t look much like a fearsome predator, what with her tiny puppy teeth and soft little ears. According to her DNA, however, the mummified puppy, named Zhùr, came from a population that's among the ancestors of all modern wolves. Canada’s permafrost freeze-dried her remains shortly after her death around 57,000 years ago.

“She’s the most complete wolf mummy that’s ever been found. She’s basically 100 percent intact—all that’s missing are her eyes,” said Des Moines University paleontologist Julie Meachen.

Puppy surprise

In July 2016, miner Neil Loveless of Favron Enterprises was searching for gold in Alaska’s famed Klondike gold fields. He was water-blasting the frozen mud along the banks of Last Chance Creek. It’s a process called “hydraulic thawing,” meant to thaw and soften the frozen permafrost so miners can search for gold in the streambed deposits, an approach called placer mining. But Loveless found something far stranger and even more interesting than Klondike gold: a frozen, mummified wolf puppy.

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Posted in ancient DNA, gold mining, klondike, mummies, paleontology, Permafrost, pleistocene, science, wolves, Yukon | Comments (0)