Besides dinosaurs, there are many extinct creatures on the earth. Please choose an extinct creature, consult relevant information and introduce several reasons for extinction.

1. spotted donkey (extinct after 1883).

Also known as half-length zebra, half-length horse, subspecies of common zebra. One of the most famous extinct animals in Africa. 1788, the spotted donkey was originally listed as an independent species, and it was called the spotted donkey. The spotted donkey became extinct because its meat and skin were brutally hunted by human beings, and the live specimen of the spotted donkey that was finally kept in captivity died in Artis Magistra Zoo in Amsterdam, the Netherlands, on August 1883.

Spotted donkey is actually a subspecies of grassland zebra. The back half of its body is black, while its abdomen and limbs are white. Spotted donkey's eyes are behind the skull. The spotted donkey has a long neck and a long head, but its ears are short. The spotted donkey disappeared from the earth forever in 1883 due to human's wanton killing.

2. Strada manatee (extinct since 1768). Uninformed livestock can grow to 25.9 feet long (equivalent to 7.9 meters), and adult Stella manatees generally weigh 3 tons. A large number of Stella manatees once lived in the North Pacific coast, southern Japan and California. It is likely that the arrival of human beings not only led to the extinction of Nestera manatees in this area, but also led to the extinction of Nestera manatees in other areas.

Strada manatee, also known as Starr manatee, has no teeth and lives mainly in Comando Islands. Strada manatee is huge, with a body length of 7-8 meters and a weight of 3-4 tons. It is the second largest mammal in the ocean.

3. The marsupial wolf (1936 extinct). A famous carnivore with a bag attached to it in modern times, which is produced in Australia and New Guinea, is usually called Tas Megna Tiger. The origin of this species can be traced back to the Miocene of Early Tertiary. Although this species is considered extinct, there are still many reports of marsupials being witnessed.

The marsupial wolf, English name Thylacine Tasmanian wolf, was once widely distributed in the Australian mainland and nearby islands (extinct in 1936). After European immigrants settled in Australia, the marsupial wolf on the Australian mainland became extinct, and it was only distributed in Tasmania in southern Australia. Some people think that wild populations are extinct. Body like a dog, head like a wolf. Shoulder height is 600 mm, body length is 750 mm, tail length is 530 mm, coat color is light gray or yellowish brown, and there are 14- 18 black band spots on the back. Hair is short, dense and very hard. The mouth is very long. Five toes on the front foot and four toes on the back foot.

4. Irish deer (extinct about 7700 years ago). Also known as the giant deer, it is the largest deer that has ever lived on the earth. They lived in Eurasia-from Ireland to Lake Baikal, dating back to 5700 BC. The giant deer's shoulders are about 7 feet high, and its antlers are the largest among deer, weighing 90 pounds.

Irish deer, also known as giant deer, is the largest deer that once lived on the earth. Now extinct

5. Li Haihu (1970 extinct). The third largest tiger in the world, also known as Persian tiger, is the westernmost subspecies of tiger. Li Haihu has short hair around his cheeks. The male Li Haihu is huge and weighs about 169 kg-240 kg. The female sea tiger is not as big as the male and weighs only 85kg- 135kg. There is also a story about witnessing a tiger in the sea.

Li Haihu is a large carnivore with a long and strong body. Males and females usually hunt and eat alone. Active at night and active during the day. They usually feed on large hoofed mammals, such as deer and cattle. Li Haihu generally reaches sexual maturity at the age of 3 to 4. Females usually give birth to three or four cubs at a time, and generally no more than two survive. Dead and thin cubs will be eaten by females.

6. European bison (extinct in 1627). One of the most famous extinct animals in Europe, it is very large and was introduced to Europe 250 thousand years ago. Killing giant animals anywhere is the privilege of nobles, and later it gradually became the privilege of the royal family. The last surviving female bison in Europe died in Jaktorów Forest Park in Poland on 1627.

European bison, one of the most famous extinct animals in Europe. European bison and ancient European bison (said to be the ancestors of modern cattle raising) are very big. 2 million years ago, the European bison was introduced to India. Then it spread to the Middle East, then to Asia, and finally to Europe 250,000 years ago. 1758, Linnaeus first described this animal in scientific literature. In the 20th century, European scientists bred a new kind of European bison from cattle domesticated by their family. Compared with wild European bison, their biological characteristics are not exactly the same.

7. great auk (extinct since 1844). Great auk is the only flightless species among puffins, with a huge body. From the Atlantic, he has lived to this day. Unfortunately, great auk is gone. It is also called the Great Haiyan or Penguin. It is about 30-34 feet (75 cm) high and weighs 5 kg. This flightless great auk is the largest puffin species. The wreckage found in Shell Hill, Florida, shows that they flew irregularly southward in winter until14th century.

Puffin is a kind of flightless waterfowl, which once lived widely on the Atlantic islands. Great auk is very similar to a penguin in appearance and appearance, with a stout body, a white abdomen and a black head and tail. Because its wings have degenerated, it can only glide at low altitude during sleep. When it dives into the water, it will keep flapping its wings and play a strong role in promoting it. Great auk rarely lives on land except during the breeding season. They like group activities. Hundreds of them often gather together, floating on the sea surface or diving into the sea to prey on small fish and shrimp. Great auk's nest is very simple. Each couple only needs to grab some hay on the island and put it on the rock shed. Great auk's reproductive ability is extremely low. She lays only one egg at a time. Each egg has various colors and stripes, and looks very delicate.

8. The cave lion, also known as the European cave lion or Eurasian cave lion, is the ancestor of the lion and an extinct subspecies of the lion. This subspecies is the largest group of lions. They live in caves and are carnivores, preying on otters, small rodents and other herbivores. Cave lions became extinct in the Pleistocene (about 3 million years to 6.5438+0 million years ago).

9. dodo (1extinct at the end of 7th century). The dodo is a flightless bird that lives in mauritius island. It is three feet tall (1 m), feeds on fruits and lives on land. The dodo has been extinct since the middle and late17th century, which can be attributed to human activities.

Dodo, scientific name: Raphuscucullatus. Dove order, sometimes described as Raphaniformes, is a bird of Raphanidae. Originally from Mauritius, 168 1 extinct. Dodo can't fly. This family includes three species, and the other two species are R. Solitarius from Reunion Island (extinct in 1746) and Pezophapssolitaria from Rodrigues Island (extinct in about 1790). The dodo is bigger than a chicken and weighs about 23 kilograms (about 50 kilograms). The body feathers are blue-gray and the head is big. The mouth is 23 cm (9 inches) long, light black, and the red sheath forms the hook tip. The wings are too small to fly. The feet are strong and yellow, and there are a bunch of curved feathers on the instep. The only pigeon in reunion island may be an albino variety of dodo. Rodriguez's solitary pigeon is light brown, tall and thin, with a small head, a short mouth without a thick hook tip and protrusions on its wings. At present, Oxford University has preserved the head and feet of a dodo, the British Museum has only one foot, and Copenhagen has another head. How many complete bones have been preserved in several museums in Europe, America and Mauritius? The bones of many solitary pigeons have also been preserved.