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28 de jun. de 2023 · Dragonflies live from a week to eight weeks as adults, but up to five years as nymphs underwater. Learn about their life cycle, factors that affect their longevity, and how they compare to other arthropods.
Around 7,000 species of true dragonflies are alive today, and, together with the closely related damselflies, they form the group Odonta, which goes back 325 million years. Watery beginnings
5 de oct. de 2011 · 4 ) In their larval stage, which can last up to two years, dragonflies are aquatic and eat just about anything—tadpoles, mosquitoes, fish, other insect larvae and even each other.
Dragonflies are predatory insects, both in their aquatic nymphal stage (also known as "naiads") and as adults. In some species, the nymphal stage lasts up to five years, and the adult stage may be as long as 10 weeks, but most species have an adult lifespan in the order of five weeks or less, and some survive for only a few days.
The life-expectancy of adults is short, typically no more than a week or two, but sometimes they can last 6–8 weeks. Adult dragonflies have voracious appetites, and can be observed hunting other flying insects, particularly small flies, on sunny days.
8 de mar. de 2022 · A dragonfly has a life span of more than a year, but very little of that life is actually as an adult dragonfly. There are three stages of the dragonfly life cycle, the egg, the nymph, and the adult dragonfly.
16 de may. de 2024 · The Editors of Encyclopaedia Britannica. Last Updated: May 16, 2024 • Article History. dragonfly. Also called: darner, devil’s arrow, or devil’s darning needle. Related Topics: Odonata. entomophagy. globe skimmer. On the Web: British Dragonfly Society - Life Cycle And Biology (May 16, 2024)
