Ice Age Wolf Pup and Caribou Mummies Discovered in Yukon

Government of Yukon
Government of Yukon

Officials in Canada recently announced that gold miners in Yukon territory unearthed a mummified wolf pup and caribou calf, both of which roamed the continent during the Ice Age, CBC News reports. The specimens were found preserved in permafrost in Dawson City in 2016, and researchers used carbon dating to determine that the animals are more than 50,000 years old.

While fossils from this period often turn up in the Yukon, fully intact carcasses are a lot rarer, Yukon government paleontologist Grant Zazula told CBC News. “To our knowledge, this is the only mummified Ice Age wolf ever found in the world,” Zazula said.

The caribou calf carcass—which includes the head, torso, and front limbs—still has its skin, muscle, and hair intact. It was found in an area that contains 80,000-year-old volcanic ash. Observed in a similar condition, the wolf pup still has its head, tail, paws, skin, and hair.

A caribou calf
Government of Yukon

Close-up view of the wolf club
Government of Yukon

These findings also hold special significance for the Tr’ondëk Hwëch’in First Nation, an indigenous group in the Yukon. “The caribou has fed and clothed our people for thousands of years,” Tr’ondëk Hwëch’in Chief Roberta Joseph said in a statement. “The wolf maintains balance within the natural world, keeping the caribou healthy. These were an amazing find, and it’s a great opportunity to work collaboratively with the Government of Yukon and our community partners.”

The Canadian Conservation Institute will be tasked with preserving the animal specimens, and the findings will be displayed in Dawson City until the end of the month. They will later be added to an exhibit at the Yukon Beringia Interpretive Centre in Whitehorse.

[h/t CBC]

Middle School Student Discovers Megalodon Tooth Fossil on Spring Break

iStock.com/Mark Kostich
iStock.com/Mark Kostich

A few million years ago, the megalodon was the most formidable shark in the sea, with jaws spanning up to 11 feet wide and a stronger bite than a T. Rex. Today the only things left of the supersized sharks are fossils, and a middle school student recently discovered one on a trip to the beach, WECT reports.

Avery Fauth was spending spring break with her family at North Topsail Beach in North Carolina when she noticed something buried in the sand. She dug it up and uncovered a shark tooth the length of her palm. She immediately knew she had found something special, and screamed to get her family's attention.

Her father recognized the megalodon tooth: He had been searching for one for 25 years and had even taught his three daughters to scour the sand for shark teeth whenever they went to the beach. Avery and her sisters found a few more shark teeth that day from great whites, but her megalodon fossil was by far the most impressive treasure from the outing.

Megalodons dominated seas for 20 million years before suddenly dying out 3 million years ago. They grew between 43 and 82 feet long and had teeth that were up to 7.5 inches long—over twice the size of a great white's teeth. They're thought to be the largest sharks that ever lived.

Megalodon teeth have been discovered on every continent except Antarctica, but they're still a rare find. Avery Fauth plans to keep her fossil in a special box at home.

[h/t WECT]

Stonehenge Builders Likely Descended From Immigrants, Genetic Analysis Says

Matt Cardy/Getty Images
Matt Cardy/Getty Images

There's a lot we don't know about Stonehenge, but until recently, the structure was thought to have been built by hunter-gatherers native to what's considered England today. A new study disputes that theory. As IFL Science reports, Stonehenge was likely the the work of Turkish people who migrated to Britain 6000 years ago and their descendants.

In the new report published in the journal Nature: Ecology & Evolution, scientists from London's Natural History Museum and University College London explain how they analyzed the DNA from the remains of dozens of people who lived in Britain between 8500 BCE and 2500 BCE.

The results contained fewer native British genes than expected: Researchers found that when the people whose bones they studied were alive, most of Britain's hunter-gatherer population had already been replaced by farmers from the Aegean region.

Roughly 6000 years ago, people from what is now Turkey traveled across Europe and settled in Britain. In addition to reshaping the British gene pool, the new group also introduced agriculture to the area. Archaeologists have long debated whether farming is something that was brought to Britain by a different culture or if native hunter-gatherers gradually adopted it on their own.

"The transition to farming marks one of the most important technological innovations in human evolution. It first appeared in Britain around 6000 years ago; prior to that people survived by hunting, fishing and gathering," study co-author Mark Thomas said in a press release. "Our study strongly supports the view that immigrant farmers introduced agriculture into Britain and largely replaced the indigenous hunter-gatherer populations."

That means Stonehenge, the first part of which was constructed around 3000 BCE, was likely the work of people who were culturally and genetically closer to ancient Aegeans than native Britons. But how they moved the 25-ton stones to their current location and for what purpose remains a mystery.

[h/t IFL Science]

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