1, coelacanth, the oldest known clawed fish, has been considered extinct since the end of Cretaceous, until 1938, when the first specimens were found on the east coast of South Africa. The coelacanth first appeared in the fossil record of Middle Devonian, about 4. 1 100 million years ago.
2. Sherman Crab, a crustacean found in the South Pacific in 2005, is 6 inches long. Furry? Our pliers contain filamentous bacteria, which may feed on bacteria. Although it is considered as an ordinary carnivore, its food also includes green algae and shrimp.
3. Ye Hailong has no teeth or stomach, and only eats shrimp. It is called ""in Australia? Australian seahorse? They were found in calm cold water, about 50-54 degrees Fahrenheit. Since 1982, the South Australian government has been protecting them.
4. The fleshy growth on the head of fishing fish plays the role of bait, and the head also has prominent thorns, which can move in all directions. Mainly living in the dark zone of the ocean, where the water is too deep for the sun to penetrate, because individuals may be rare in the local area, it is problematic to find a spouse. When scientists first began to observe them, they noticed that all the specimens were female.
5. The narwhal's teeth can reach nearly 10 feet long and weigh 22 pounds. The purpose of tusks has always been the focus of debate. Early scientific theories showed that ivory was used to pierce the ice covering the Arctic Ocean habitat, while others believed that ivory was used for echolocation. Recently, scientists believe that tusks are mainly used for performances, and males with bigger teeth are more likely to attract their spouses successfully.
6. platypus is a semi-aquatic mammal unique to eastern Australia. It is one of the few poisonous mammals. The male platypus has a thorn in its hind foot, releasing a poison that can cause serious pain to human beings. The unique characteristics of platypus make it an important topic in evolutionary biology research and an identifiable and symbolic symbol of Australia.
7. The Tasmanian tiger is the largest carnivorous marsupial known in modern times. It is native to Australia and New Guinea and was considered extinct in the 20th century. Intensive hunting encouraged by bounty is usually considered as the cause of its extinction, but other factors may be disease, the introduction of dogs and human invasion of its habitat. Although officially listed as extinct, there are still sightings.
8. Angora rabbit is a long, soft, long-haired rabbit.1In the mid-8th century, rabbits were very popular in the French royal family and spread to other parts of Europe at the end of this century. They were largely raised by people to obtain long hair.
9. Dumbo is like an octopus. They are benthic animals, living in extreme depths, and are one of the rarest species among octopus. Unlike most octopuses, they can wash the transparent layer of the skin at will and are open marine animals.
10 When the lizard is afraid, it opens its mouth to reveal a bright pink or yellow lining, with prominent edges and bright orange and red scales. They often walk on four legs on the ground. When they are frightened, they start running on all fours.