A Russian man stumbled on a ghastly sight while strolling along the Tirekhtyakh riverbank last summer. It was the ferocious severed head of a gigantic wolf.
The grisly remains still had all of its hair and its fangs, but the animal wasn’t even remotely a recent find. The man who made the discovery in Abyisky District of Yakutia, Pavel Efimov, delivered the wolf head to local scientists to examine. They found from examination that it dated back some 40,000 years ago—a remarkable age considering how well preserved it was.

Analysis determined that the fully grown wolf had been 2 to 4 years old at the time of its death. It was, nevertheless, massive by modern standards. The giant head spans an incredible 16 inches in length (40 cm). That’s about half the length of a modern wolf’s entire body, which is typically between 26 inches and 34 inches long (66 cm to 86 cm), the Times said.
“This is a unique discovery of the first ever remains of a fully grown Pleistocene wolf with its tissue preserved,” said Albert Protopopov, from the Republic of Sakha Academy of Sciences. “We will be comparing it to modern-day wolves to understand how the species has evolved and to reconstruct its appearance.”
The wolf’s head was put on display as part of a woolly mammoth exhibition in Tokyo, along with other previously frozen remains, including an immaculately preserved cave lion cub.
“Their muscles, organs and brains are in good condition,” said Naoki Suzuki, a professor of paleontology and medicine from Jikei University School of Medicine. “We want to assess their physical capabilities and ecology by comparing them with the lions and wolves of today.”
Currently, scientists from the Swedish Museum of Natural History plan on examining the wolf head’s DNA to compare its genetic composition with that of modern wolves of today, according to the Siberian Times.
This is not the first frozen wolf found harking back to prehistoric times. An ancient mummy pup was unearthed in Canada that dated back over 50,000 years ago.
A study done in 2015 examined DNA from a 35,000-year-old rib bone from a wolf found in Siberia. They were looking into the evolutionary split between wolves and dogs.
Scientists Unearth ‘Mind-Blowing’ Haul of 500 Million-Year-Old Fossils
In related news, an accidental discovery on a river bank in China’s Hubei province has unearthed an incredible collection of thousands of fossils.Paleontologists estimate the fossils are about 518 million years old and are extraordinary for their documentation of soft-bodied organisms. Skin, eyes, and even internal organs have been “exquisitely” well preserved.
Researchers documenting the find have identified 101 different animal species, with over half of the discovered fossils being new to science.
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The team who collected the specimens published their findings in the journal Science in late March 2019.
Professor Robert Gaines, a geologist who took part in the study, expressed astonishment at the find. “Their sheer abundance and their diversity of forms is stunning,” he said, according to the report.
Professor Allison Daley, who contributed a paleontological analysis to the proceedings, admitted, “It blew my mind.”
Speaking to BBC’s Science in Action, she added: “I never thought I’d get to witness the discovery of such an incredible site … For the first time we’re seeing preservation of jellyfish. [When] you think of jellyfish today,” she continued, “they’re so soft-bodied, so delicate, but they’re preserved unbelievably well at this site.”
“There’s still many weird wonders.”