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The bone-crushing hyenas that lived in the canadian Arctic during the last ice age

It is an illustration of two powerful ancient hyenas (<i>Chasmaporthetes</i>) are set to have their next meal in what is today the Yukon Territory of Canada.
(Julius T. Csotonyi)

During the last ice age, the bone-crushing hyenas lurking in the snow-covered Arctic, are likely to satisfy their meat hunger by hunting herds of caribou, and horses, and the scavenging mammoth carcasses in the tundra, a new study finds.

Great find — that’s the old hyena’s lived in the North American Arctic, is based on the two tiny teeth that archaeologists have found in Canada and in the northern part of the Yukon Territory.

The two teeth to fill a gaping hole in the fossil record. The researchers had all of the proof that the wolf-sized hyena, known as Chasmaporthetes was living in the country, and, after the crossing of the bering strait bridge, the Kansas city and central Mexico at the time. The new teeth to show you where the Chasmaporthetes and lived between the two places: in the just over 4000 miles (6500 kilometers) away from the Old World and in the country, and a 2,500-mile (4,000 km) to the north of Kansas, the researchers said. [Image Gallery: Hyenas at the Kill you.

In other words, Chasmaporthetes was able to adapt to all kinds of environments, the study lead investigator, Jack Tseng, a vertebrate paleontologist at the University of Buffalo in New York, said that the progress of Science.

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Archaeologists originally thought that the two fossil teeth in the 1970’s, a fossil hotspot, a place known as the Old Crow Basin. However, no one has ever published the studies on the teeth, which have languished for decades in the collections of the Canadian Museum of Nature in Ottawa, Ontario.

Language is learned on the teeth, and it is only by word of mouth. Intrigued, he jumped into his car and drove the 6 hours from Buffalo to Ottawa in February, in the dead of winter. The teeth, pre-molar, and are so strong, that in the first 5 minutes, I was pretty sure it was Chasmaporthetes,” he told Live Science.

When most people think of hyenas, and that they are in the image of the carnivorous animals roaming in Africa as it is today. But the hyena’s are actually originated in Europe and Asia some 20 million years ago. It was only when the hyenas made their way to Africa, and an even smaller number went over the bering strait land bridge to North America, at least according to the existing fossil record.

The teeth are challenging-to-date and as they are found to be in the inside of a bend of a river, that is, the current washed them away from their original resting-place. However, on the basis of the geology of the basin, and the teeth are likely to be between 1.4 million and 850,000-year-old Tseng said.

These teeth are from the oldest hyena in North America, however. The price is going to go to the 4.7-million-year-old hyena fossils have been found in Kansas, but the Administration has said.

He added that this is the old drive’s have never ran into a person. The beasts became extinct in North America between 1 million and 500,000 years ago, long before humans arrived in the Americas. One of the oldest human traces in the Americas, it is a 15,600-year-old’s presence in Brazil.) It is unclear as to why this march is gone, but it is also possible that the other is a voracious ice-age-carnivores, such as the bone-cracking dog (Borophagus), the giant short-faced bear (Arctodus), or a hunting-dog and dog-like canid (Xenocyon), their habitat and outcompeted them for a prey, Tseng said.

Today, there are only four living species of hyena, three bone-crushing species of the ant-eating aardwolf. In view of the fact that Chasmaporthetes was a bone crusher, it is likely to have a major role to play in the disposal of dead bodies in the old, and in North America, just like vultures do today, the Administration said.

The new study is a much-needed dip in carnivore evolution, and the diversity of North America, said Blaine Schubert, executive director of the Center for Excellence in the Study and a professor of geosciences at East Tennessee State University, who was not involved in the study.

“It’s been a long time, the assumption of a hyena crossed the Beringian land bridge to enter North America, but evidence was lacking,” He told Science in an e-mail. “These new fossils support the Beringian dispersal hypothesis, and to dramatically increase the range of Chasmaporthetes.”

The study is published online today (June 18) in the journal Open Quaternary.

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Originally published on Live Science.

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