Insects Information

Insects are a class within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae. They are among the most diverse group of animals on the planet and include more than a million described species and represent more than half of all known living organisms. The number of extant species is estimated at between six and ten million, and potentially represent over 90% of the differing metazoan life forms on Earth. Insects may be found in nearly all environments, although only a small number of species occur in the oceans, a habitat dominated by another arthropod group, the crustaceans.

The life cycles of insects vary but most hatch from eggs. Insect growth is constrained by the inelastic exoskeleton and development involves a series of molts. The immature stages can differ from the adults in structure, habit and habitat and can include a passive pupal stage in those groups that undergo complete metamorphosis. Insects that undergo incomplete metamorphosis lack a pupal stage and adults develop through a series of nymphal stages. The higher level relationship of the hexapoda is unclear. Fossilized insects of enormous size have been found from the Paleozoic Era, including giant dragonflies with wingspans of 55 to 70 cm . The most diverse insect groups appear to have coevolved with flowering plants.

Insects typically move about by walking, flying or occasionally sinking and swimming at the same time. Because it allows for rapid yet stable movement, many insects adopt a tripedal gait in which they walk with their legs touching the ground in alternating triangles. Insects are the only invertebrates to have evolved flight. Many insects spend at least part of their life underwater, with larval adaptations that include gills and some adult insects are aquatic and have adaptations for swimming. Some species, like water striders, are capable of walking on the surface of water.

Wikipedia, Insects, http://en.wikipedia.org/wiki/Insects (as of Apr 1, 2010)

Insects Books

Log in or join now now to suggest Insects books.

Insects Videos

Log in or join now now to suggest Insects videos.
Loading...

Insects Links

Insects is in LifeKnot's Pets category. See more Pets activites.
Log in or join now now to suggest Insects links.

Insects Tweeps

Log in or join now now to suggest tweeps the tweet about Insects.

Insects Gear

Log in or join now now to suggest Insects gear.

Insects Gurus

gu · ru [goo-roo] : one who is regarded as having great knowledge, wisdom and experience in a certain area, and who uses it to guide others. Log in or join now now to designate yourself or someone you know a Insects guru.

LifeKnot members interested in Insects

There are no members listing that activity with photos and the criteria you specified.
Perform detail search (doesn't require photos).


LifeKnot ∞ Meet people that share your interests.
Copyright © 2018 LifeKnot, LLC. All rights reserved.
find us on facebook ©
follow us on twitter
Process time: 0.0271 seconds.