In the vast North American savannah, there are many large animals living, the largest of which is called the North American bison.
North American bison have a short temper and are very easy to attack people, and they can run up to 64 kilometers per hour, far exceeding the speed of people, so if they are targeted by North American bison, it will be very dangerous.
These bison have a strong impact, they rely on their heavy bodies, hard horns, and fast running, they can easily break through obstacles such as barbed wire and fences. So, in the face of the north American bison charge, do not take the opportunity to think that hiding behind obstacles is safe.
The North American bison was once the largest large animal on the North American continent. Until 1800, about 60 million North American bison lived on the North American prairies. Under the hunting of humans, in less than 100 years, there are only more than 500 left. Fortunately, the U.S. government realized the seriousness of the problem and, in order to protect these endangered animals, Yellowstone National Park was established in 1872 and Buffalo National Park in 1922.
After these bison were protected in time, they began to recover gradually.
Below is Yellowstone National Park under the blue sky and white clouds, which is one of the most common bison in North America.
After the U.S. government took protective measures, the number of bison began to gradually rise, and by 2000, it had risen to 360,000 head. Today, there are still about 500,000 North American bison on the North American continent.
However, only about 30,000 of them live in the wild, and about 470,000 live on human farms.
Because North American bison like to wreak havoc, many farms are often destroyed by them near the living areas of wild North American bison. This gives many bison and local domestic cattle the opportunity to cross.
Therefore, today's North American bison is actually very different from the ancient North American bison, because they are mixed with the genes of local domestic cattle.
But this is not a bad thing, when the North American bison in the remaining more than 500, their genetic spectrum has become very single, if there is no communication between these and domestic cattle, there is no foreign gene supplement, then, they will not be able to guarantee the genetic diversity, will make the body's resistance become very fragile, once a large-scale infectious disease, it is easy to be extinct.
At the point of extinction, it can be saved by humans, and compared with many extinct animals on the North American continent, the North American bison is lucky.