The life expectancy of different animals.

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In the world there are a great variety of animals - domestic and wild, well-known or not yet known to science.Every year scientists discover any new species, and some representatives of fauna - are dying out.In total, according to scientific sources of the planet more than a million species.It differs - sometimes several times - the life expectancy of various animals living on land and under water.Let's compare some data only.

Shellfish

biggest life expectancy of animals recorded among molluscs.That's really, really, Methuselah age!Venus Ocean found off the coast of Iceland (2007) at a depth of eighty meters, lived for more than 400 years.Scientists have identified his years on the lines on the shell (like the rings of a tree).Animal, "who remember the" ancient era, nicknamed Ming after the ruling dynasty of emperors, which was in power in China when he was born.A previous record also belonged to one mollusc, who lived 374 years.

Redfish

Despite the commercial importance of this type of fish, some individuals live long enough - up to 200 years.These specimens were found in the Pacific Ocean at a depth of 500 meters.The thing is that this fish grows very slowly, mature later becomes.And as a result: a significant life expectancy (of course, if it does not have time to catch the omnipresent fishermen).

sea urchin and other

Lifespan of different animals, as a rule, is largely determined by their environment.So among marine and oceanic species a lot of long-livers.Red sea urchins, for example, if he succeeds, can live up to 200 years.In general, this ancient animal lives in the depths of the sea are already 450 million years old.

bowhead whales also live more than two hundred years.The oldest known specimens - 245!They are joined by Koi, most elderly caught - 226 years (although the average age is less than 50 species).

Turtles

Lifetime different animals depends on their way of life.So well known for its turtles for years and kneeled on the right may be assigned to the list of long-lived fauna.The oldest known tortoises reach the age of 250 years.

«Eternal»

sponges, which are appropriate classification are also allowed, provided its longevity and extremely low mobility of sustained growth.Antarctic sponge, the scientists studied, lived more than a thousand years!

And one of the species of jellyfish, as it became known recently, virtually no age.Since the animal at some stage of their development can "wrap back the clock", returning to the "adolescent" stage polyp, and begin to develop again.Thus, these items are potentially immortal.

Animals Wildlife

What with the wildlife?

  • Typically, the optimal duration of life of different animals of the class of mammals is limited overseas in 100 years or less.Longer - only some whales and elephants.Horses can live more than 50 years.Brown bear, on average, live to 45 years, and small rodents - just a few years.
  • Some insects live a lifetime in a day.These include mayflies, or, for example, bagworm moth-butterflies (here through all goes to minutes).Bees queen lives up to 5 years, and the simple worker bees - up to forty days (this is really true: the injustice of class)!Some beetles live for three years.But female ants, for example, can live up to 15 years (males - a few days).
  • Among the reptiles are the types that are crawled for a long time.Everyone knows that it is - a turtle.Small species of reptiles live, as a rule, no more than three years.Snakes are large - up to 25 Iguanas - more than 50.
  • Ravens, representatives of many species of birds in captivity can live up to 40-50 years.Average life sparrow - up to 20 gulls - 17 owls - up to 15 pigeons - 12.

Lifetime pets

It often depends on the conditions of the animals.Their proper feeding and adherence of the day.Roughly speaking, the life expectancy of pets depends on how a person takes care of them, to tame.

  • Some chickens can live for up to 30 (but who will give them)!The average duration of cows according to livestock farmers up to 30 years.Bulls live on less - up to 20 horses in good conditions of stay can live up to 50-60!But usually it does not live up to 30.
  • From pets: rabbits - 12 years, hamsters - 3 years, and the mouse - 2 years, rats - up to 5 dogs life expectancy dramatically depends on the breed.On average, from 7 to 15. Some cats live to 25 (usually up to 15 years).

Lifetime animals.Table

As you can see, some animals live long enough.Some, on the contrary, several days or even - hours.Scientists still can not find the exact criteria according to which there is one or another lifetime of animals.The table below, only states the facts (of course, they are approximate).

shellfish 400 years
whales 250
turtle 250
sea urchin 200
grouper 200
elephants 100
horse 50
cats 15
dog 15
rabbits 12

remains to add that person as a representative of the class of mammals,may live a hundred years, if it is to lead a healthy lifestyle and get rid of bad habits.