Ancient wolf cub found 'perfectly preserved' in Canadian permafrost. Sappiamo anche cosa ha mangiato

Un cucciolo di lupo perfettamente conservato, nascosto nel permafrost per 57,000 anni e descritto dai ricercatori come “il più vecchio, lupo più completo,” è stato scoperto nello Yukon, Canada.

La creatura, named Zhùr by the local Tr’ondëk Hwëch’in First Nation people, was discovered in the Klondike goldfields, near Dawson City, by a gold miner, who was water blasting a wall of frozen mud.
This mummy is so complete, she has basically got all her skin, most of her furall her soft tissues present, and she’s 56,000 Anni, or thereabouts,” Julie Meachen, an associate professor of anatomy at Des Moines University in Iowa, ha detto alla CNN.
The female pup, according to Meachen, è “il più vecchio, most complete wolf that’s ever been found,” allowing researchers to delve deeper into what her life would have looked like.
    Using X-ray techniques, experts determined that the puppy, quale had been preserved in permafrost, died at 6 o 7 weeks old.
    Nel frattempo, a technique called stable isotope analysis revealed that the animal lived during a time when glaciers had receded.
    Experts used noninvasive X-ray techniques to find out more about the wolf pup.

    There weren’t quite as many glaciers around, which means there was a lot more fresh water,” lei disse. “There were a lot of streams, a lot of rivers flowing, and probably a lot of other animals around. She lived in a lush time.
    The wolf cub’s diet, i ricercatori hanno scoperto, was influenced by her proximity to water: Isotope analysis revealedshe and her mom were eating mostly aquatic resourcesthings like salmon, maybe some shore birds,” Meachen said.
    A DNA analysis revealed the pup is descended from ancient wolvesthe ancestors of modern wolvesfrom Russia, Siberia and Alaska.
    The wolf pup died at 6 o 7 weeks of age.

    It’s not a surpriseshe is related to the things that were there at the time,” lei spiegò. “But the cool thing about that, that most people might not know, is that wolves in the ice age were only distantly related to wolves that are around today.
    They are still the same species, but they are very different, for being in the same species. Their genetics have changed quite a bit over timethe diversity of wolf has been diminished over time, and again, allargato.
    She is truly an ancient wolf, and she was related to all the wolves around her at the time,” Meachen said.
    It takes very specific circumstances to create a permafrost mummy, the researchers said, although several well preserved wolf cubs have been retrieved from Siberia. tuttavia, this cub, found in North America, was particularly rare.
    It’s rare to find these mummies in the Yukon. The animal has to die in a permafrost location, where the ground is frozen all the time, and they have to get buried very quickly, like any other fossilization process,” Meachen said in a statement. “If it lays out on the frozen tundra too long it’ll decompose or get eaten.
      Because of herpristine” condizione, experts think that the wolf cub died instantaneously, perhaps when her den collapsed, as data showed she didn’t starve.
      The research was published Monday in the journal Current Biology.

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