Monday, March 31, 2008
Honey Bee
Saturday, March 29, 2008
Scorpions
The cuticle makes a tough shell around the body. In some places it is covered with hairs that act like equilibrium organs. An outer layer that makes them luminous green under ultraviolet light is called the hyaline layer. Newly molted scorpions do not glow awaiting after their cuticle has toughened. The luminous hyaline layer can be integral in fossil rocks that are hundreds of millions of years old.
The confidence that scorpions commit suicide by harsh themselves to death when surrounded by fire is of considerable relic and is often prevalent where these animals exist. It is nevertheless untrue since the venom has no effect on the scorpion itself, nor on any member of the same species. The misapprehension may obtain from the fact that scorpions are poikilotherms (cold-blooded): when showing to passionate heat their metabolic processes break down. This causes the scorpion to spasm wildly and this spasming may appear as if the scorpion is hurtful itself. It is also untrue that alcohol will cause scorpions to sting themselves to death.
Friday, March 28, 2008
Crustaceans
The scientific study of crustaceans is known as carcinology. Other names for carcinology are malacostracology, crustaceology and crustalogy, and a scientist who works in carcinology is a carcinologist, crustaceologist or crustalogist.
Thursday, March 27, 2008
Orthoptera
Orthopterans have two pairs of wings; the forewings or tegmina are narrower than the hind wings and toughened at the base. They are held overlapping the stomach at rest. The hind wing is membranous and held folded fan-like under the forewings when at rest. They have mandibulate mouthparts, large compound eyes, antennae length varies with species. Their saltatorial hind legs are extended for jumping.
Orthopteroid species have a paurometabolous life cycle or regular metamorphosis. Most grasshoppers lay their eggs in the ground or on foliage. The eggs emerge and the young nymphs look like adults but lack wings and at this stage are often called hoppers. Grasshoppers are able to fold their wings, placing them in the group Neoptera. Through consecutive moults the nymphs develop wings until their final moult into a grown-up adult with fully developed wings.
Wednesday, March 26, 2008
Cockroaches
Cockroaches are most common in humid and subtropical climates. Some species are in close connection with individual dwellings and generally found around refuse or in the kitchen. Cockroaches are generally omnivorous with the exemption of the wood-eating genus Cryptocercus; these roaches are powerless of digesting cellulose themselves, but have symbiotic relationships with various protozoans and bacteria that digest the cellulose, allowing them to remove the nutrients. The resemblance of these symbionts to those in termites are such that the genus Cryptocercus has been believed to be more closely related to termites than to other cockroaches, and current research muscularly supports this hypothesis of relationships.
Tuesday, March 25, 2008
Butterfly
Butterflies encompass the true butterflies (superfamily Papilionoidea), the skippers (Superfamily Hesperioidea) and the moth-butterflies (Superfamily Hedyloidea). Butterflies reveal polymorphism, mimicry and aposematism. Some are known to voyage over large distances. Some butterflies have evolved symbiotic and sponging relationships with social insects such as ants. Butterflies are vital cheaply as one of the major agents of pollination. In addition, a number of species are pests, because they can damage domestic crops and trees.
Monday, March 24, 2008
Spider
All spiders produce silk, a thin, strong protein filament extruded by the spider from spinnerets most normally found on the end of the abdomen. Many species use it to trap insects in webs, though there are also many species that hunt generously. Silk can be used to aid in climbing, form smooth walls for burrows, build egg sacs, wrap prey, and provisionally hold sperm, among other applications.
All spiders excluding those in the families Uloboridae and Holarchaeidae, and in the suborder Mesothelae (together about 350 species) can insert venom to protect themselves or to kill and dissolve prey. Only about 200 species, however, have bites that can pose health problems to humans. Many larger species' bites may be quite tender, but will not produce lasting health concerns.
Tuesday, March 18, 2008
Beetles
Beetles can be found in almost all habitats, but are not known to occur in the sea or in the polar regions. They work together with their ecosystems in several ways. They often use to eat plants and fungi, break down animal and plant debris, and feed other invertebrates. Some species are victim of various animals including birds and mammals. Certain species are agricultural pests, such as the Colorado potato beetle Leptinotarsa decemlineata, the boll weevil Anthonomus grandis, the red flour beetle Tribolium castaneum, and the mungbean or cowpea beetle Callosobruchus maculatus, while other species of beetles are important controls of agricultural pests. For example, coccinellidae ("ladybirds" or "ladybugs") consume aphids, scale insects, thrips, and other plant-sucking insects that destroy the crops.