By Athur Evans
Grzimek's scholar Animal lifestyles source: bugs and Spiders bargains readers accomplished and easy-to-use info on Earth's bugs and spiders. Entries are prepared by way of taxonomy, the technology in which residing issues are categorised into comparable teams. each one access contains sections on actual features; geographic diversity; habitat; vitamin; habit and replica; animals and other people; and conservation prestige. All entries are by means of a number of species debts with a similar info in addition to a spread map and photograph or representation for every species. Entries finish with a listing of books, periodicals, and sites which may be used for additional examine.
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Additional info for Grzimek's Student Animal Life Resource: Insects and Spiders
Parasitoids (PAE-re-SIH-toyds) live and feed inside the bodies of certain kinds of animals (hosts) and eventually kill them. Parasites are also specialists, attacking only certain animal hosts but seldom killing them. Suitable foods are found by sight, smell, touch, and taste. Herbivores chew or suck fluids from all parts of plants, including roots, trunks, stems, buds, leaves, flowers, fruits, and seeds. Some species even bleed leaves of their sticky or toxic resins before eating them. Many collect a variety of plant materials and store them as food, while others simply use them as mulch for growing their own food.
The forebody has six pairs of appendages, including the pinchers or grasping arms, claw-like pedipalps (PEH-dih-paelps), and eight walking legs. They never have antennae. The reproductive organs are located at the front or rear of the abdomen. The abdomen sometimes has a tail-like structure that is used as a rudder (horseshoe crabs), a defensive weapon (scorpions), as a sensory organ (whip scorpions), or a silk-producing organ (spiders and mites). There are about sixtyone thousand species, most of which live on land.
Evans. ) Other arthropods occasionally gather in groups to feed, mate, or temporarily guard their young, but they are not truly social. There are about 40 species of spiders that live in groups in large webs and feed together. A huntsman spider, Delena cancerides, lives under bark in groups of up to three hundred individuals. These groups consist mainly of young spiders with just a few adults. They work together to attack and kill insect prey, as well as defend their shelter against spiders from other colonies.
Grzimek's Student Animal Life Resource: Insects and Spiders by Athur Evans