Stunning photos show 44,000-year-old mummified wolf discovered in Siberian permafrost

In a first-of-its-kind discovery, a complete mummified wolf was pulled from the permafrost in Siberia, after being locked away for more than 44,000 years. Scientists have now completed a necropsy (an animal autopsy) on the ancient predator, which was discovered by a river in the Republic of Sakha — also known as Yakutia — in 2021. 

This is the first complete adult wolf dating to the late Pleistocene (2.6 million to 11,700 years ago) ever discovered, according to a translated statement from the North-Eastern Federal University in Yakutsk, where the necropsy was performed. The discovery, scientists say, will help us better understand life in the region during the last ice age.

Photos from the necropsy show the wolf's mummified body in exquisite detail. Animals are preserved in permafrost through a type of mummification involving cold and dry conditions. Soft tissues are dehydrated, allowing the body to be preserved in a frozen time capsule.

Researchers took samples of the wolf's internal organs and gastrointestinal tract to detect ancient viruses and microbiota, and to understand its diet when it died. 

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"His stomach has been preserved in an isolated form, there are no contaminants, so the task is not trivial," Albert Protopopov, head of the department for the study of mammoth fauna of the Academy of Sciences of Yakutia, said in the statement. "We hope to obtain a snapshot of the biota of the ancient Pleistocene."

He added the wolf, which tooth analysis revealed was male, would've been an "active and large predator," so they will be able to find out what it was eating, along with the diet of its victims, which "also ended up in his stomach."