1, North American gray wolf

It is not only the "giant" among wolves, but also the largest of all canines, not to mention the Tibetan mastiff, which is of course bigger than the Tibetan mastiff. There's nothing wrong with beating a Tibetan mastiff. Gray wolves in North America are extremely wild. They live in the vast North America, where there are many powerful carnivores, such as brown bears and cougars. You must be strong if you want to stand in a place where experts are like clouds.

2. Russian wolf

The standard wolf is also one of the biggest wolves in each subspecies. Russian wolves have excellent endurance and are suitable for long-distance running. Their narrow chest and strong back and legs make them extremely efficient. The running speed can reach 65 kilometers per hour, and the distance of each step in the sprint can be as long as 5 meters. Isn't it terrible?

Northwest Wolf

Also known as jathyapple Wolf, it likes to howl everywhere at night and lives in the northwest of our province. It is one of the representatives of Chinese wolves. The northwest wolf is particularly fierce, tenacious and persistent, and will never give up until it reaches its goal. This spirit makes people feel ashamed, and many people in the northwest regard this wolf as a symbol.

Northwest wolves are also tall and powerful, living in groups, usually in groups of seven, but they are very responsible.

Extended data

Variety overview

Livestock and poultry breeds must consist of a considerable number of individuals and strains, so as to ensure the selection and reproduction within the breeds without forcing inbreeding (animals). It has genetic stability, timeliness and regionality.

Varieties are generally divided into two categories according to the degree of cultivation:

① Original varieties. Also known as local varieties, or native species. It is a long-term breeding under extensive conditions and has strong adaptability to local ecological conditions, but its productivity is generally poor, such as Mongolian sheep and Xiaohong corn.

(2) bred varieties or cultivated varieties. Through high-level breeding measures and intensive cultivation, the production benefits are good, but the requirements for feeding and breeding conditions are high, such as large white pig and short-legged Nantes rice. In addition, there are so-called transitional breeds among domestic animals, that is, intermediate breeds between the above two.

Variety is an excellent group of animals and plants, and it is the means of production of agriculture and animal husbandry. A variety is also a gene pool. The unique characters of some varieties often play an important role in animal and plant breeding. For example, the dwarf character of chicken used to be considered undesirable, but now it is used to cultivate new dwarf chickens. Paying attention to maintaining rare original varieties is an important content of germplasm resources protection.

Baidu Encyclopedia: Variety