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Insects are invertebrates that are taxonomically referred to as the class Insecta. They are the most numerous and most widespread terrestrial taxon within the phylum Arthropoda. Insects are the most diverse group of animals on the earth, with around 925,000 species described—more than all other animal groups combined. Insects may be found in nearly all environments on the planet, although only a small number of species have adapted to life in the oceans where crustaceans tend to predominate.

There are approximately 5,000 dragonfly species, 2,000 praying mantis, 20,000 grasshopper, 170,000 butterfly and moth, 120,000 fly, 82,000 true bug, 350,000 beetle, and 110,000 bee and ant species described to date. Estimates of the total number of current species, including those not yet known to science, range from two to thirty million, with most authorities favoring a figure midway between these extremes. Adult modern insects range in size from 555 mm (see Phobaeticus serratipes) to 0.139 mm (see Dicopomorpha echmepterygis)

The study of insects (from Latin insect, meaning "cut into sections") is called entomology, from the Greek εντομος, also meaning "cut into sections" .

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Insecta :: Arthropoda
Entomology :: Arthropoda

 
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Q) What do you call a eusocial insect that smells of onion, and is in a pop band who plays music from any decade that the audience requests?
chris_coltrane (Chris Coltrane) Wed, 04 Nov 2009 00:57:03 -0000
Q) What do you call a eusocial insect that smells of onion, and is in a pop band who plays music from any decade that the audience requests?
Racers, start your ... roaches? Annual competition doesn't bug insect enthusiasts at Palm Beach Atlantic Univer.. http://bit.ly/1sYIi2
JupiterIT (Bill Panaggio) Wed, 04 Nov 2009 00:54:03 -0000
Racers, start your ... roaches? Annual competition doesn't bug insect enthusiasts at Palm Beach Atlantic Univer.. http://bit.ly/1sYIi2
As a gigantic insect awoke one morning from uneasy dreams he found himself transformed in his bed into Polly Brownlee.
pollybrownlee (Polly Brownlee) Wed, 04 Nov 2009 00:40:26 -0000
As a gigantic insect awoke one morning from uneasy dreams he found himself transformed in his bed into Polly Brownlee.
Bouyant: A male insect. #jokes
FriendsofRayC (Raymond Cooney) Wed, 04 Nov 2009 00:39:54 -0000
Bouyant: A male insect. #jokes
About to be bitten by radioactive insect-man #unseenprequels
omgwtf_bbq (jeremy rambis) Wed, 04 Nov 2009 00:31:46 -0000
About to be bitten by radioactive insect-man #unseenprequels
Fatty Acid Synthase Inhibitors anti-obesity drugs (Xenical) might help stave insect-borne infectious diseases like DENGUE: http://ow.ly/z0Ha
marcellojun (Marcello Jun) Wed, 04 Nov 2009 00:01:58 -0000
Fatty Acid Synthase Inhibitors anti-obesity drugs (Xenical) might help stave insect-borne infectious diseases like DENGUE: http://ow.ly/z0Ha

 
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The Genetic Stock Center for the German Cockroach - Develop formal genetics of this insect, along with research on its biology, cytogenetics, behavior and insecticide resistance. Includes a list of mutants and a linkage map.

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