1, lighthouse jellyfish
Lighthouse jellyfish is a small jellyfish with a bell-shaped body and a diameter of about 4-5 mm. It is transparent and can see the red digestive system, which looks like a lighthouse, hence its name. The lighthouse jellyfish has a huge stomach and a bright red color, and its cross section is cross-shaped.
Most of them live in tropical waters and are carnivorous, feeding on plankton, small crustaceans, polychaetes and even small fish. Lighthouse jellyfish can reproduce asexually from hydra, and it is the only known organism that can recover from sexual maturity to larval stage.
It takes 25 to 30 days to reach sexual maturity at a water temperature of 20℃, which is mainly distributed in the Caribbean. However, due to the ballast water discharged by ocean-going ships, they gradually spread to other adjacent waters and the offshore of Spain, Italy and Japan.
2. Lizards
Lizards, commonly known as "four-legged snakes" and "snake aunts", are distributed all over the world. It belongs to cold-blooded reptiles, with a wide variety, about 3,000 species distributed on the earth, and more than 50 species/kloc-0 are known in China. Most of them are distributed in the tropics and subtropics, and their living environments are diverse, mainly terrestrial, arboreal, semi-aquatic and burrowing in the soil. Most of them feed on insects, and there are also a few species of plants that eat at the same time.
Lizards are oviparous, and a few are oviparous. Lizards and snakes are closely related, and they have many similarities. The whole body is covered with horny scales derived from epidermis, and the anal orifice is a transverse fissure. Both males have a pair of connectors, all of which are oviparous (or some oviparous species), and the square bone can move.
3. Bowhead whale
Bowhead whale, named after its huge and unique bow-shaped head, is a marine mammal belonging to Cetacea. When it grows up, its length can reach 2 1 m (female is larger than male) and its body is very heavy. Whale fat is as thick as 70 cm, which helps to keep out the cold. It digs breathing holes for itself, and its long baleen resembles a sieve, which is used to filter plankton such as krill.
Bowhead whales have a thick voice, which is used to communicate with each other when migrating, eating and socializing. Some of the long and repetitive whale songs may be mating signals, and some individuals can live to 150-200 years old.
4. Tortoise
Tortoise belongs to one of Tortoise and Tortoise. Sometimes specifically? Turtles are also called golden turtles, grass turtles, mud turtles and mountain turtles. Taxonomically, it belongs to Reptilia, Tortoise, and Tortoise. It is one of the common tortoises and an ancient reptile. It is characterized by a very strong carapace. When attacked, turtles can retract their heads, tails and limbs into the carapace (except turtles and snapping turtles).
Most turtles are carnivorous, feeding on worms, snails, shrimp and small fish, as well as the stems and leaves of plants. Turtles are distributed in almost all parts of China, but the yield in the middle and lower reaches of the Yangtze River is higher. It is also produced in all parts of Guangxi and Shandong, especially in southeastern Guangxi and southern Guangxi. Foreign countries are mainly distributed in Japan, Brazil and North Korea.
5. Pacific Submerged Mudclam
Pacific diving mud clam, common name like mussel. It is the largest known burrowing bivalve, with a shell length of about 18-23 cm, a water pipe that can be extended by 1.3 m, but cannot be retracted into the shell, and its weight can reach 3.6 kg. Because of its large and fleshy rainbow tube, it is called "elephant mussel" and is a large shellfish of the genus Clam.
Native to Alaska, USA, northern California and the Pacific coast of Canada, it is now cultivated in Southeast Asia and the southeast coast of China.
Reference sources; Baidu encyclopedia-lighthouse jellyfish
Baidu Encyclopedia-Lizard
Baidu Encyclopedia-Bowhead Whale
Baidu Encyclopedia-Tortoise
Baidu Encyclopedia-Pacific Submerged Mudclam