What is the life span of dragonfly?
468701
Depends on which part of the life cycle and which species.  For example, some species have a laval life span of several years, and an adult (breeding stage) life span of weeks to months...
33812
Here are a few websites that outlines the Dragonflies life cycle.
880102
In the wild, many male tarantulas have been shown to have an average life expectancy of only about five years, while females often live 25 to 30 years.\n\nThe survivorship of captive specimens may be much higher, where they have adequate food, water, and shelter, stable environments, no predators, and possibly most important, no chance for females to eat them during mating season.
154894
If you begin with a single female, for the first generation, 40 moths will survive (1/3 of 120).  For the second gereration, the 20 females (1/2 of the survivors) will produce 800 surviving offspring (1/3 of 20 x 120), one-half of which are females (400).  Continue the sequence to the 5th generation, then add the total males and females during the year .  Your answer will be  little more than 3 million of each. Note that the original female is not counted as a generation, as she is already an adult at the beginning of the year.  Also, it is assumed that a female lays 120 eggs only, no more and no less.
51568
A tortoise can live for 170 years, one recently was found with an old ball musket round embeded in it.  The average lifespan for Females is around 80 years and males about 74.  It is difficult to give any degree of precision because of so many external factors that influence this number.  However, on a small scale there are bacteria that can live many thousands of years while frozen.
396395
It depends on the species. Large apple snails can live over 10 years. Small pond, ramshorn, trumpet, etc. snails may live 3-6 years but most die before that when they are eaten or due to poor water quality or something else. Trapdoor snails may live 5-10 years. The average run-of-the-mill small aquarium snail is lucky to live a few years with all the predators and dangers in the average tank. But, really there is no definitive answer to your question. I don't know that anyone's done real studies on this. It's just word of mouth as to how long someone's snail may have lived.
110827
Considering that the vast majority of stars in the universe are small M type stars I would say that the average life span is 1 trillion years (M type stars can live for 3 trillion years)... The sun is a G2 V type star and will not live that long. It has a few billion years left on the main sequence. After that it will begin to expand and turn into a red giant. After another billion years or so its outer layers will just fizzle out into space leaving a white dwarf. So the total life span of the sun is about 10 billion years.
390131
There are several kinds but, I believe, only three that inhabit humans.  They can reach a length of 50 ft and can live 20-30 years depending on the specific species.
361821
In captivity they live for about 30 years, and in the wild, average lifespan for a crow is 7-8 years.
324977
I'm sure that there are more technical differences that entomologists use to discern between the two groups, but when a dragonfly is resting, its four wings are flat and held out to the side (i.e. parallel to the ground). Damselflies, on the other hand, fold theirs back and together over their bodies when they're resting.\n\nSize is NOT the difference.
340624
Some live for up to a year while others live only a couple of weeks!
350832
The maximum life span is 16-18 years but and average is about 7-8 years. Most die during the winter from cold, predation or disease due to malnutrition. The bighorn has always been prized for their meat; the horns were used by some Indians to make powerful bows and are still prized by hunters as trophies.
1028235
No, it's al oad of rubbish. Flies live for several days to several months as a larva (maggot) and live for several more days to several more months as an adult.
455946
The length of these journeys far exceeds the lifetime of a Monarch (lives four days as egg, two weeks as caterpillar, ten days as chrysalis, and two to six weeks as a butterfly). \n\n\nMetamorphosis\nThe life cycle of a Monarch includes a change of form called complete metamorphosis. The Monarch goes through four radically different stages:\n\nThe eggs are laid by the females during spring and summer breeding months. \nThe eggs hatch, revealing worm-like larva, the caterpillars. The caterpillars consume their egg cases, then feed on milkweed, and sequester substances called cardenolides, related to the cardiac glycoside digitalis. During the caterpillar stage, Monarchs store energy in the form of fat and nutrients to carry them through the non-feeding pupa stage. \nIn the pupa or chrysalis stage, the caterpillar spins a silk pad on a twig, leaf, etc. and hangs from this pad by its last pair of prolegs. It hangs upside down in the shape of a 'J', and then molts, leaving itself encased in an articulated green exoskeleton. At this point, hormonal changes occur, leading to the development of a butterfly. \nThe mature butterfly emerges after about two weeks.
958883
There are about 150,000 described species of flies, you should really narrow down this question a little. Some flies in higher latitudes and higher altitudes can live for a couple years, this is mostly due tothe fact that thier development is typically slower in colder climates. Certain other flies can live only a couple of days
843966
There is a whole order of insects with a similar life expectancy.  It is called Ephemeroptera.  The name comes from the same root as ephemeral, meaning of short duration or fleeting.  The Ephemeroptera are commonly called mayflys.  They have a long life as larvae on the bottoms of streams and rivers.  After two or three years, they come out in the adult stage, mate, lay eggs and die.  They do not eat, serve as fish food while they try to lay their eggs and are gone.  They may live more than one day but not by much.\nI don't know of any organism that actually has a total life span of only one day.
429456
The lifespan of a Common Garter Snake is difficult to determine. Several studies have been conducted to determine the average life of a Common Garter Snake in the wild. Unfortunately the studies do not agree on the life span, but the average has been determined to be approximately two years