A cockroach is an insect of the order Blattodea (or Blattaria). The American Cockroach (Periplaneta americana) is about 3 cm long. The German cockroach (Blattella germanica) is about 1.5 cm long. Tropical cockroaches are much bigger. When infesting buildings, cockroaches are considered pests. Orders Subclass Apterygota Symphypleona - globular springtails Subclass Archaeognatha (jumping bristletails) Subclass Dicondylia Monura - extinct Thysanura (common bristletails) Subclass Pterygota Diaphanopteroidea - extinct Palaeodictyoptera - extinct Megasecoptera - extinct Archodonata - extinct Ephemeroptera (mayflies) Odonata (dragonflies and damselflies) Infraclass Neoptera Blattodea (cockroaches) Mantodea (mantids) Isoptera (termites) Zoraptera Grylloblattodea Dermaptera (earwigs) Plecoptera (stoneflies) Orthoptera (grasshoppers, crickets... Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ... The tropics are the geographic region of the Earth centered on the equator and limited in latitude by the two tropics: the Tropic of Cancer in the north and the Tropic of Capricorn in the southern hemisphere. ... The primary meaning of pest is an animal which has characteristics which people regard as being injurious or harmful. ...

Closeup of a cockroach

Cockroaches are often found around garbage and in the kitchen. Female cockroaches, or henroaches, are sometimes seen carrying egg cases on the end of their abdomen; the egg case of the German Cockroach holds about 30-40 long, thin eggs, packed like frankfurters in the case called an ootheca. Download high resolution version (1280x1707, 124 KB)High detail closeup of a cockroach. ... Download high resolution version (1280x1707, 124 KB)High detail closeup of a cockroach. ... Female is a sex that denotes an animal which produces egg cells in order to reproduce. ... An average Whooping Crane egg is 102 mm long, and weighs 208 grams A baby tortoise emerges from a reptile egg. ... The abdomen (from the Latin word meaning belly) is the part of the body between the pelvis and the thorax. ... A large hot dog with ketchup A hot dog is classified as a type of sausage or, alternatively, a sandwich on a suitably shaped bun with the sausage and condiments on it. ...

The eggs hatch from the combined pressure of the hatchlings gulping air and are initially bright white nymphs that continue inflating themselves with air and harden and darken within about 4 hours. Their transient white stage while hatching and later while molting has led to many individuals claiming to have seen albino cockroaches. In biology, a nymph is the immature form of some insect species (e. ...

A female German cockroach carries an egg capsule containing around 40 eggs. She drops the capsule prior to hatching. Development from eggs to adults takes 3-4 months. Cockroaches live up to a year. The female may produce up to 8 egg cases in lifetime. In other words, in favorable condition it can produce 300-400 offspring.

The world's largest cockroach is the Australian giant burrowing cockroach, which can grow to 9 cm in length and weigh more than 30 grams. Comparable in size is the giant cockroach Blaberus giganteus, which grows to a similar length but is not as massive. Flying winged roaches are native to Palm Springs, California.

Cockroaches are mainly nocturnal, as they run away when the kitchen light is turned on. Roaches are actually very clean insects, even though they eat garbage. They are called the custodians of nature. They only live in houses where there are crumbs to eat or the garbage can is uncovered. They lay eggs inside the house's hollow walls. For every one roach seen, there are many more inside the walls.

Cockroaches are known for their ability to resist radiation. They can live a month without a head, and only then, die of thirst. They can squeeze their bodies through thin spaces and eat their way out of a plastic bag. Sprays, roach 'bombs', pesticides, roach motels, poison peanut butter, beer can traps, and many other methods are used to kill cockroaches. Roaches outlived the dinosaurs, survived the cold of the Ice Age, and will outlive the human race. Roaches have not changed much in hundreds of millions of years because they have reached a state of near natural perfection; in other words, they have every biological element that they need to survive, no matter how environments change in geological world history.

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The Madagascan Hissing Cockroach is a large flightless insect from the forests of Madagascar. It lives under the bark of trees or in leaf litter, feeding on plant matter including leaves and fallen fruit. Madagascar is an island nation in the Indian Ocean, off the eastern coast of Africa. ... BARK (Bin r Automatisk Rel Kalkylator) was completed in February 1950 at a cost of 400. ... This article is about the biological organisms known as trees. ... This article is about the leaf, a plant organ. ... Divisions Green algae land plants (embryophytes) non-vascular embryophytes Hepatophyta - liverworts Anthocerophyta - hornworts Bryophyta - mosses vascular plants (tracheophytes) seedless vascular plants Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongue ferns seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering... In botany, a fruit is the ripened ovary, together with its seeds, of a flowering plant. ...

Any predator that catches one of these cockroaches is in for a double shock. The legs of this insect are covered in needle-sharp spines and the cockroach can make a loud hissing sound. It does this by forcing air out of the breathing holes that run along the side of its body. This snapping turtle is trying to make a meal of a Canada goose, but the goose is too wary. ...

This is one of the largest cockroaches in the world and can reach 8 cm (3 inches).

Although they live in the forest, they are attracted by house lights, and will sometimes creep through open windows. However, they are harmless and will soon leave when disturbed. This article is about forests as a massing of trees. ...

The Madagascan Hissing Cockroach is often used in television programmes and films where a large scary-looking insect is required.

External link

• cockroach pictures (http://www.cockroach-pictures.com) shares pictures and facts on cockroaches and their behavior, feeding habits and life cycle.