Species distribution in the Palearctic, zoogeographic divisions of the Palearctic

The species with obvious characteristics such as hibernation, food storage, migration, and large individual proportion are typical Palearctic species, and the typical Oriental species are arboreal and gliding, and there are also some large carnivorous species, ligads and some large herbivorous deer, which are not much different from the Palearctic.

Palearctic - New North - Oriental - Ethiopian (tropical) - Neotropical - Australis - Antarctica.

Due to the vast area of desert, plateau, tundra and other geographical landscapes that are not suitable for animal life, and the subarctic coniferous forest is a young landscape formed after the Quaternary, and the harshness, resulting in relative poverty, not many endemic families, and the number of species included is also limited;

It is related to animal genera and species, the northern species are similar, and the south is mixed with the Oriental kingdom;

There have been many connections with the New Northern Boundary, causing animals to move back and forth, and the two kingdoms share many species in common, often collectively referred to as the Whole Northern Boundary.

An zoogeographic division dominated by Eurasia. It covers all of Europe, Africa north of the Tropic of Cancer and Arabia, the Himalayas, and Asia north of the Qinling Mountains. The largest of the world's 6 geographical domains. Including all of Europe, the Tropic of Cancer to.

Africa and Arabia to the north, Asia to the north of the Himalayas and Qinling Mountains, and islands near the continents of Asia and Europe, such as Britain, Ireland and Japan. The boundary is broad, the climate of different regions is very different, the geographical landscape is changeable, the north is mostly low, the south is many high mountains, there are deserts and the Qinghai-Tibet Plateau with an altitude of more than 4000 meters, and the vegetation types include tundra, subarctic coniferous forest (i.e., taiga), mixed coniferous and broad-leaved forest, grassland and desert, and temperate broad-leaved forest.

The Palearctic is the largest zoogeographic region. The Palearctic boundary is vast and ecologically diverse, most of the area used to belong to the Laoya paleocontinent, and the part bordering the Old Tropical Boundary originally belonged to the Gondwana Paleocontinent, and the former wheel is now regarded as a transitional area between the Palearctic and the Old Tropics. As the largest fauna with a very diverse natural environment, the Palearctic range used to be the center of the evolution of many animal groups in the Prehistoric Times, but in many areas it was greatly affected during the Ice Age, and there were large areas of cold and arid areas, with relatively harsh natural conditions and relatively poor animal species.

The total area of the North Frontier is almost as large as that of all other sectors combined, but the species make up only a small fraction of the world.

In the Palearctic artiodactyls, two large families are predominant, bovidae and cervidae, and there are some large species. The European bison of the Bovidae family and the moose of the Cervidae family are the largest animals in the Palearctic Realm, of which the moose are shared by the Palearctic and New Northern Realms, while the European bison and the American bison of the New Northern Realm are close relatives. The alpine plateau region of the interior of the Palearctic is the distribution center of the subfamily Bovine sheep, which is rich in some climbing wild sheep.

There are some members of the antelope subfamily in the inland savannah region, but the species are far less abundant than in the Old Tropics. The deer subfamily and the hollow-toothed deer subfamily are both represented, which are the main ungulates in the forest, and there are also primitive members of the musk subfamily in East Asia. There is only one species of non-ruminant species, wild boar, but it is widely distributed and is the most common large animal.

There are two types of popods, dromedary and Bactrian camels, and all of them are domestic animals, except for Bactrian camels, which are still a few in the wild. The odd hoofs are mainly Asian wild asses, the European wild horses are extinct, and the Przewalski's horses may also be extinct in the wild.