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Mayfly has a slender body, a head that can rotate freely, two pairs of wings, well-developed forewings, and small hindwings; The abdomen is elongated, with a filamentous tail hair that is longer than the body. The lifespan of adults varies depending on the species, ranging from very short to a few hours, and the longest can be as long as 821 days, usually 23 days. Therefore, in the idiom, the life and twilight death refer to the life of the mayfly after it has changed from a juvenile to an adult.
Mayflies lay eggs in the water after mating, usually hatching in one or two weeks, and the larvae look very similar to silverfish, and some are very similar to tadpoles; It has tracheal gills on the abdomen and lives in water, living on microorganisms and plant tissue fragments in the water. The juvenile period is very long, and some have to shed their skin more than 20 times before becoming adults.
You may think that epiphany is the shortest-lived flower, right? No. The king lotus of the Amazon River in South America shows its face in the early morning and wilts in half an hour. The shortest-lived flower in the world is the flower of wheat, which blooms for only five to thirty minutes before it is gone.
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The animal with the shortest average lifespan is the mayfly, which has a lifespan of only one day!!
Mayflies usually only live for a few hours after hatching from their pupal shells, and they rarely live longer than a day. They spend their short lives on a simple task: finding a mate. Due to the lack of mouth and stomach, they do not need to stop to eat.
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The longest-lived of trees are trees, followed by shrubs and vines.
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Do you know what is the longest-lived creature in the world? Let me tell you what the world's longest-lived creature is.
The world's longest-lived creature: Methuselah
Introduction
The longest-lived creature that can be found in natural science is a microorganism called Methuselah, which lives in sediments and is said to have lived for 2.6 billion years, having been a classmate of the dinosaurs. What's even more interesting is that in order to survive, this creature is said to have reduced the rate of its metabolism to a level that even modern instruments cannot detect.
German scientists recently discovered one of the longest-lived organisms to date, a sponge that lives in the Antarctic ocean, with a lifespan of more than 10,000 years. Previously, the longest-lived creature found was the pine tree that grew in the United States, which lived for more than 5,000 years. This sponge is more than two meters long and grows extremely slowly.
Although scientists began studying this sponge 20 years ago, it is difficult to determine its exact lifespan because this sponge does not form growth rings during growth. Recently, scientists at the German Centre for Polar and Marine Research have estimated its lifespan by measuring oxygen consumption.
In nature, the longest-lived creature is the ginkgo tree, which can be more than 3,000 years old. What's even more peculiar is that as a tree species, the ginkgo tree has maintained its characteristics unchanged for more than 200 million years, and the dinosaurs of the same era have long been extinct, but only the ginkgo tree is still full of vitality.
Lifespan
The longest life lived for 100 million years.
The Sunday Times of July 16, 2000 reported that British scientists recently discovered the world's longest-lived life in the underground of Fender Cleveland, England. This is a kind of bacteria, after analysis and identification, scientists concluded that the lifespan of these bacteria that are still alive is 100 million years, and named the bacterium "Methuselah worm", Methuselah is a long-lived figure in the Old Testament, it is said to have lived for 969 years, which is equivalent to Pengzu in China.
Biologists led by the University of Leicester and immunologist Grant in the United Kingdom discovered the "Shou Xing Lao'er" in a layer of salt sediment underground, and they estimated that the place used to be a shallow water, and the "Methuselah bugs" used to live in the shallow water, and then the water evaporated and they were deposited with the salt. Over the course of their long evolution, they have adapted to the harsh conditions of the underground salt formations, subsisting on organic matter in the salt formations and having an extremely slow rate of metabolism close to zero.
The significance of this new discovery lies firstly in the discovery of a new bacterium, and secondly, in the longest-lived life. But, more importantly, it provides a new direction for exploring the origin of life and extraterrestrial life, and since life can survive in such harsh conditions, it is possible to find life in places where it was previously thought impossible to exist, and even on planets such as Mars and in space.
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The longest-lived creatures known on the earth, in our lives, there are many long-lived creatures, there may be many that we have not heard of or seen, so what are the longest-lived creatures known on the earth? You can follow me to find out below.
Lighthouse jellyfish have the longest lifespan and are nearly immortal.
The lighthouse jellyfish (turritopsis nutricula), a species of jellyfish, returns to the polyp state after sexual maturity and can repeat the process indefinitely. The jellyfish are the only creatures that theoretically live forever as long as they are not eaten or die of disease, the newspaper said.
Lighthouse jellyfish, which are only 4 to 5 mm in diameter, belong to the class Hydroids, are predatory organisms that can swim away to reproduce asexually from polyps, and are the only known organisms that are able to recover from the larval stage of sexual maturity. Theoretically, this cycle can be repeated over and over again, that is, the lighthouse jellyfish can live forever without having to face death. A scientist who studied lighthouse jellyfish once looked at 4,000 lighthouse jellyfish and confirmed that all of them were rejuvenated and none of them died.
Blackhorn Coral, 4265 years old. A 2009 study showed that blackhorn coral is the oldest known coral species on Earth, the oldest continuous organism, and the longest-lived. The radial growth rate of organisms is only 4-35 microns per year, and the oldest is 4265 years old!
It's impossible to imagine what this concept is, but it was born around the time the pyramids were built in ancient Egypt.
Giant barrel sponge, 2300 years old. Giant barrel sponges can reach meters in diameter, are usually brownish-red to brownish-gray in color, have a hard or stony texture, and can live for more than 1,000 years. The oldest sponge on record lives on a Caribbean coral reef at 2,300 years old, though it is now dead.
Arctic clam, 507 years old. Arctic clams have textured shells, each representing a year old, and in 2006 scientists found more than 3,000 Arctic clams on the bottom of Iceland in the northern Atlantic, including 34 live ones. One of the living was later identified as being 507 years old and born in 1499, during the Ming Dynasty of China, hence the name "Ming".
Sadly, it was frozen to death in the freezer.
Greenland shark, 392 years old. Life span can reach 300-500 years old, is the longest known vertebrate on the earth, the secret of its longevity is that it is rarely active, slow growth, only 1 cm a year to envy, 150 years old to mature, but also really survived. A female Linglan shark discovered in 2016 may have lived to be 512 years, although later carbon isotope analysis of eye tissue suggests that her actual age may be 392 years.
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<> "The World's Shortest-Lived Animals.
01 Mayfly:
Lifespan: A few hours.
Physical characteristics: Mayflies are the most primitive winged insects, with slender bodies, transparent wings, slender antennae and long legs.
Habits and behaviors: Adult mayflies do not feed and have a very short lifespan, usually only a few hours or a few days. Adults are responsible for mating during their short lives, and when they have completed the task of reproducing offspring, they die silently.
02 Paramecium:
Lifespan: one day and night.
Physical characteristics: Paramecium is a small, cylindrical, single-celled animal among protozoa, with the most common tail paramecium being only 180 to 280 microns long.
Habits and behaviors: Paramecium has a very short lifespan, calculated in hours, the lifespan time is about one day and night, and the lifespan of large paramecium can reach more than five days and nights. Hermaphroditic and have a variety of reproductive modes.
03 Mosquito:
Lifespan: 310 days.
Physical characteristics: The mosquito is an insect with a slender body and wings, the female mosquito has a long mouthpart and is used to suck blood, while the male mosquito only feeds on plant sap.
Habits and behaviors: The life of a mosquito goes through four stages: egg, larva, pupa and adult. The lifespan of the first mosquito is not very long, with an average of 310 days, and the female mosquito is only 20 days.
04 Worker Bees:
Lifespan: dozens of days.
Physical characteristics: The bee is a social insect, composed of queen bees, drones, worker bees and other individuals, the worker bees are smaller, have wings, and have yellow and black bodies.
Habits and behaviors: Worker bees have the most tasks, and they survive the shortest time in the summer honey harvesting season, often dying in more than 20 days.
05 Umbrella Squid:
Lifespan: The lifespan of umbrella squid is very short, only about 1 to 2 years on average.
Physical characteristics: The umbel membrane squid is the largest squid species in the world, with tentacles up to 50 cm long and a total length of more than 100 cm.
Habits and behaviors: Umbel squid is usually found in the shallower waters of seagrass beds, reefs, and sand beds.
06 Leopard Chameleon:
Lifespan: Leopard chameleons also have a relatively short lifespan, even in a privileged environment, male chameleons can only survive for 5 to 6 years, while females have a shorter lifespan, generally only 2 to 3 years.
Appearance characteristics: The leopard chameleon is also known as the colorful chameleon because of its easy color change like a rainbow. They are smaller in size, usually no more than 30 centimeters.
07 Hamster:
Lifespan: Hamsters have a very short lifespan, only about 2 to 3 years on average.
Physical characteristics: Hamsters are small and usually only a few centimeters long. Their furry appearance is very cute and they are one of the pets that many people love.
Habits and behaviors: Hamsters are usually nocturnal and sleep during the day, and they store food for emergencies. Sun Mu.
08 Mudskipper:
Lifespan: The lifespan of mudskippers is relatively short, generally only about 3 to 5 years.
Physical features: The body of the mudskipper is cylindrical, generally 10 20 cm long.
Habits and behaviors: Mudskippers are tolerant of low oxygen and typically live in areas such as moist swamps, rivers, and estuaries.
Mayfly has a slender body, a head that can rotate freely, two pairs of wings, well-developed forewings, and small hindwings; The abdomen is elongated, with a filamentous tail hair that is longer than the body. The lifespan of adults varies depending on the species, ranging from very short to a few hours, and the longest can be as long as 821 days, usually 23 days. Therefore, in the idiom, the life and twilight death refer to the life of the mayfly after it has changed from a juvenile to an adult. >>>More
Birth, old age, sickness and death are the laws of nature, every living individual has to face death, and the 6 animals with the shortest lifespan are: >>>More
Sea turtles and dove trees.
Maximum lifespan of an animal: 300 years for sea turtles; The large bivalve clams live from 80 to 100 years old and can live for hundreds of years. >>>More
How long is the life span of the earth? The Earth is speculated to have survived for 4.6 billion years, but how long will it live? Scientists believe that if the Earth is allowed to move freely, it may exist forever, but if other external factors interfere with it, the Earth may have an end of life. >>>More
1 The new dynasty established by Wang Mang. (9 A.D. - 23 A.D.) Belongs to the Western Han Dynasty, not an opposing dynasty 2 The Later Han Dynasty is a local regime, not counting dynasties 3 The shortest is still the Qin, Qin Dynasty (221 BC --- 206 BC) Remember, a dynasty refers to ruling the whole country.