Elephants are the largest terrestrial mammals in the world.As we can see, it has a long nose. Tens of thousands of years ago, even tens of millions of years ago, many animals, like elephants, belonged to the long nose.LongnosemammalThe largest land animal in the worldAfrican elephantIt belongs to the long nose class.
The ancestor elephant is the ancestor of the proboscisEoceneAfrica in the later period (about 40 million years ago)EgyptRegional life, modern body shapepigandcattlebetween.It has no long nose, only a more prominent nose.The second pair of incisors is slightly larger, which may be the embryonic form of ivory later.
Stegodon huanghoensis
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In China in 1973GansuprovinceConfluentThe county was found with a length of 8 meters, a height of 4 meters, and an ivory length of 3 metersthe pleistoceneIn the early period (about 2 million years ago), the climate conditions in northwest China were very similar to those in the African savannah.
mammoth
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mammothOnce inAsia、Europe、North AmericaYes, it belongs to the large body type in the long nose class.Its ivory is larger and longer than the saber tooth elephant, and can reach 4 meters or even 5 meters. Individuals over 4 meters in height are very common.There is a kind of mammoth called real mammoth, which has thick fur to resist the cold. They live inSiberiaandAlaskaThey became extinct about 10000 years ago, and their bodies can still be found in the permafrost layer of these places.
African elephant
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The African elephant is the largest of the existing terrestrial mammals, slightly larger than the Asian elephant, and can be distinguished from the Asian elephant by its ears as big as a cattail fan.Asian elephants have rounder and smaller ears.The elephant's ears can emit heat and keep the body cool, but sometimes the temperature of the African continent is too high.Elephants have an innate affinity for water and like ittakeWater is inhaled into the trunk and sprayed all over the body.After that, they often spray a layer of protective soil on the skin.
evolution
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Many species have appeared in the evolution process of the long nose class, but most of these species have been extinct, and so far onlyAsiaThe forests in the south andAfricaThere are wild proboscis in the grassland, which are calledAsian elephantandAfrican elephant。Asian elephants are small, but only male elephants are bigivoryAfrican elephants are large, and both male and female elephants have large tusks.
