Paramecium is a representative species of ciliates and protozoa. It is called paramecium because it looks like an upside-down kusanagi when viewed from the plane. It needs careful observation with a microscope. Paramecium lives in fresh water and can be collected in ponds, swamps and rivers. It is a small cylindrical protozoa. It consists of only one cell. It is a single-celled animal, hermaphrodite.
The hot summer has come, and the big trouble of mosquitoes has followed. This guy is probably the most annoying animal. The life span of mosquitoes is not very long, with an average of 5~ 12 days, and that of females is 20 days. Its life goes through four stages: egg, larva, pupa and adult. After molting for four times, it becomes a pupa. After two or three days, mosquitoes will be fully mature, waiting for the opportunity to mate. Female mosquitoes can lay eggs six to eight times in their lifetime, with 200 to 300 eggs each time.
Similarly, as insects, bees are more friendly to humans. They are often called "hard gardeners". Bee is a social insect, which consists of queen bee, drone, worker bee and other individuals. The queen bee is responsible for laying eggs, and the male bees mate with it, and the worker bees have the most tasks. In a bee colony, the queen bee can live for 3-5 years, while other bees only have dozens of days.
Mantis is a cool insect. Its body is streamlined and big. Mainly green and brown, but also variegated. The most famous story of mantis is that the female mantis eats the male mantis. Besides, mantis has a short life span. The life cycle of mantis is completed in one year, and it has gone through three stages: egg, nymph and adult. The continuous occurrence period of adults is from July to 10 every year.
Umbrella squid, also known as giant squid in Australia, is mainly distributed in the southern coast of Australia. Its tentacles are as long as 50 cm, and the total length exceeds 100 cm. They usually appear in shallow waters of seagrass beds, coral reefs and sand beds. They can use pigment cells to quickly change colors and create extremely spectacular scenes. During the mating season, males use their huge size and various colors to attract the attention of females.
Leopard chameleon is also called color chameleon because its color is easy to change, such as rainbow. The leopard chameleon originated from the warm and humid island of Madagascar in Africa. Mainly distributed in the northern, northwestern, northeastern and eastern coastal lowlands and adjacent islands. They are very popular because they are easy to cultivate. Unfortunately, even under superior conditions, male chameleons can only live for 5 to 6 years, while female chameleons have a short life span and usually die within 2 to 3 years.
Pinball fish, also known as jumping fish and eye fish, are widely distributed in the west coast of Africa, Indian Ocean-Pacific Ocean and coastal areas of China. The marmot's body is cylindrical, generally 10 ~ 20cm long. Habitat in the sediments of estuaries, coastal beaches or low tide areas. Strong tolerance to water quality in harsh environment. Squid grows very slowly. It usually takes 1-2 years from seedling to adult, but the whole "fish" only takes 3-5 years, and the longest life span is only 7 years.
Guinea pigs, also known as guinea pigs and Dutch pigs. These small rodents without tails look naive. They have small petal-shaped ears on both sides of their heads. Besides cats and dogs, they are probably the most popular pets. Like hamsters, as a small pet, the life span of guinea pigs is also worrying. They are affected by many diseases, and reproduction will accelerate their death. The average life span of guinea pigs is between 4 and 5 years.
There is no one who doesn't like the lovely hamster. Everyone wants to keep a "Hamtaro" at home. But the average life expectancy of these cute little guys is only two years. As a mammal, life is very short. Under normal feeding conditions, the life span of different hamsters is generally about 2-3 years. Most hamsters live for about two and a half years, and some hamsters live for more than three years, but they are still rare.