
What Is an Insect? Insecta, Arthropods and Nature's Most Successful Animal Group
The short answer to the question of what an insect is: an insect is an animal belonging to the class Insecta within the arthropods, which in the adult stage has six legs, one pair of antennae and a body plan arranged as head, thorax and abdomen. This answer is narrower than the everyday meaning of “a small thing walking around the house”. In daily life it is correct to call the cockroach, the ant, the house fly and the mosquito insects; for spiders, ticks, millipedes, centipedes, woodlice, slugs and worms, the same word is not biologically correct. ...










