This important discovery-ancient hyenas lived in the North Pole of North America-was based on two small teeth, which were discovered by archaeologists in the Yukon Territory in northern Canada.
These two teeth filled a big hole in the fossil record. Researchers have evidence that wolf-sized hyenas, called CaspMaxiges, live in Mongolia and on the continental bridge across the Bering Strait, in Kansas and central Mexico. The researchers said that the newly discovered teeth show the location where Chas Porset people lived between two places: Mongolia is about 4,000 miles (6,500 kilometers) from the old world and 2,500 miles (4,000 kilometers) north of Kansas. Jack Tseng, a vertebrate paleontology scientist and research leader at the University of Buffalo in new york, told Life Science:
Archaeologists first discovered these two tooth fossils in the 1970s. In other words, Chas Porset people can adapt to various environments in a fossil hotspot called Old Crow Basin. But no one has ever published research on teeth, which have been kept in the Canadian Museum of Natural History in Otova, Ontario for decades.
In A.D. 1970, researchers found the teeth of these two ancient hyenas in the Old Crow River area of Yukon, Canada (known as the Vuntut Gwitchin First Nation). (Duane Froese/ university of alberta) once learned about teeth through word of mouth. He is very interested. He jumped into the car and drove from Buffalo to Ottawa for six hours. In February, winter has passed. Teeth, molars and premolars are so clear. "In the first five minutes, I was very sure it was a tomographic map," he told Life Science.
When most people think of hyenas, they describe carnivores roaming in Africa today. But hyenas actually appeared in Europe or Asia 20 million years ago. Later, hyenas entered Africa, and even a smaller number crossed the Bering Strait Continental Bridge to North America. At least according to the existing fossil records, "dinosaurs", "dinosaurs" and "teeth" are by far the most challenging because they were found in the inner bend of the river, which means that the current washed them away. Leave where they used to rest. However, according to the geological conditions of the basin, these teeth may have a history of 6.5438+0.4 million to 850,000 years.
These teeth do not belong to the oldest hyenas in North America. * * * said that the prize was awarded to the hyena fossil found in Kansas 4.7 million years ago.
This tooth fossil belongs to an ancient hyena in the last ice age. This tooth has been kept in the Canadian Museum of Natural History since it was discovered in 1977. (Grant Zazula/ Yukon * * *) He added that these ancient hyenas had never seen humans. These wild animals died out in North America between 1 10,000 and 500,000 years ago, long before humans arrived in America. (One of the oldest human remains in America is the footprint left by/kloc-0 in Chile 5600 years ago. It is not clear why these hyenas disappeared, but they may be other carnivores, such as boron-eating animals. * * * said that giant short-faced bears (archaea) or hunting dogs (hounds) occupied their habitat and hunted.
Today, there are only four kinds of hyenas-three biting bones and one eating ants. Considering that Chas Porset is also a bone crusher, it probably played an important role in handling Gubeimei's body, just like vultures today, once said:
This new research needs