Hybrid Memonthas are roaming in North America, showing geographical teeth

The big species of North America have created a simultaneous generation in the last 40,000 years. Goshosh teeth found in Canada suggest that Colombian and woolen mammoths are regularly combined with calves where different species are mixed.

The huge species of North America were not as different as they appeared for the first time.

During the last ice age, two different mammoths lived in the continent. Now what is more south of Canada and North America, and Colombia. According to various climate and food sources, it was assumed that these species live a large life.

However, two major beards found in western Canada, however, tell a different story. Genetic analysis of foolish dental shows that he belonged to Memouth, who was hybrid among species.

In fact, because the small Jovim has a much more DNA than the other, Colombian and woolen Memouth may have raised many times in thousands of years. Professor Adren Leicester, one of our scientists who has jointly written the new research, says it shows that hybrids play a greater role than to be thought of as earlier.

“Traditionally, we have been taught that different species cannot raise together,” says Leicester. “Since our ability to investigate genetics has been developed, however, we are finding out that it has really happened several times.”

“The view that we have taken to investigate these mems can also be applied to other anonymous animals as well. By reorganizing their history, the role we are seeing today will be better to look at by hybridization.”

The results of this study are published in the journal The letters of biology.

How did Hybrid Memon develop?

A section of the research team first revealed the evidence of Memouth Hybrid in 2021, when they pulled out 1.2 million -year -old DNA from a large -scale teeth found in Christka, Siberia.

Historically, it was believed that Stepie Memouth had turned into wool mammoth in Eurasia about 700 700,000 years ago, and about 300 300,000 years later in Central and South North America Colombian Memouth. However, Christka teeth showed that the story is not so easy.

The Christka lineage came out a separate group of Stepie Memotes, whose members raped woolen memox. Now it has been thought that it is a hybridization event that created Colombian Memon. It was probably in North America after crossing the most left -left land bridge between Siberia and Alaska in North America.

As a result, more and more of the DNA of Colombia’s Memotes were inherited from woolen mammoths. But this new research suggests that some woolen mammoths were also inheriting Colombian mammoth genetics.

At the age of about 36 36,000 years ago, one of the large teeth of the newly -driven wool, it shows that the animal has inherited more than 21 % of its genome from Colombia’s mammoths. In small teeth, about 11,000 years later, Colombia’s mammoths are responsible for only less than 35 % of the mammoth lineage.

The growing level of Colombian Memon DNA suggests that the bilateral relations between Wolly and Colombian Memonot continued for thousands of years. An analysis of sexual chromosome shows that most of the men in the competitions were Colombian mammoths in which women are growing with woolen mammoths.

The mixing of both species has made North America’s wool Memon more genetically diverse than any other population that is far away. Most types of species in their DNA usually improve the better to adapt to changes, so it is possible to help these people survive.

Mammoth under pressure

Although these hybrid mammoth are genetically separate from other members of their species, their teeth are surprisingly similar to other wool mammoth. Lester explains that this is the result of a natural choice.

“We think that the hybrid is out on average, so if a tall animal nurtures a small animal, they have children of medium -length,” says Leicester. “So, in these hybrids, we can expect their teeth to have elements of wool and Colombia.”

“Instead, we found that their teeth are still very woolen mammoths, which are well -integrated to eat grass in the cold, open plains. As the hybrid lives in a similar environment, they are under pressure to keep their wool -like teeth.”

This would have been the same for the hybrid Colombian Memon living in the south. Since they lived in a warm environment with a wide range of food, there was pressure for these animals to keep their more common teeth despite the significant amount of wool mammoth DNA.

Further studying the effects of mammoth hybridization can also help protect living animals. For example, species like Scottish Wild Kate are at risk of extinction from close -related domestic cats. Having past examples to attract the protectionists can help to understand the potential consequences of the risky species.

The changing conditions of the ice age also help scientists understand how modern elephants and other animals can adapt to the modern climate change.

“It is very important to understand how climate change can be reduced to the species at this time, and we can look at the previous climate change to help,” Leicester added. “We know that Memouth will eventually not survive the elimination of snow, and finding their adaptation can help us better understand us.”

This story has been published by the Natural History Museum. Read the original story here.