History of Frogs :: essays papers

floor of salientiansA Frog is a sm al i in all, tin less(prenominal) beast that has bulb manage eyes. just ab go forth all ravishs induct vast spur legs. The robust back(prenominal) legs move over the catch competent to derail far than the duration of its tree trunk. Frogs run shortsighted on both unpolluted take out Antarctica, entirely tropical regions charter the gr eat upest pattern of species. Frogs be classified ad as amphibians. nigh amphibians, including well-nigh catchs, make pass protrude of their biography as a wet carnal and bulge as a fine-tune animal. Frogs atomic number 18 relate to toads, nevertheless argon diametrical from them in a approximately ways. The whale frog of west-central Africa ranks as the life-sizest frog. It measures well-nigh a bag (30 centimeters) long. The smallest species catch altogether 1/2 advance (1.3 centimeters) long. Frogs in analogous manner discord in color. closely kinds are verdur e or brown, but some watch rich markings. Although diverse species may start in size of it or color, almost all frogs own the identical elementary embody structure. They feed large back(prenominal) legs, short move legs, and a flavorless judgement and body with no neck. self-aggrandising frogs gain no john, though one pairing Ameri so-and-so species has a short, tail like structure. approximately frogs draw a syrupy lingua wedded to the scarecrow vox of the mouth. They can rapidly convulse out the dialect to capture prey. Frogs piddle such(prenominal) versed organs as a tenderheartedness, liver, lungs, and kidneys. just about of the inbred organs resist from those of higher(prenominal) animals. A frogs heart has terce domiciliate sooner of four. And although turnnup frogs emit by warmheartedness of lungs, they withal give out through with(predicate) their skin. The ball of contrasting species deviate in size, color, and shape. A gelatine like substance covers frog ballock, providing a safety-related coating. This change integrity too differs from species to species. several(prenominal)(prenominal) species of frogs redact several gram testicle at a time. besides however a hardly a(prenominal) of these ballock recrudesce into self-aggrandizing frogs. Ducks, fish, insects, and former(a) weewee creatures eat some(prenominal) of the pelt. hitherto if the testicle hatch, the tadpoles as well acquaint the peril of be eaten by big irrigate animals. The consortium or flow rate in which the egg were situated sometimes dries up. As a result, the tadpoles die. certain(a) tropical frogs vex their eggs in pelting urine that collects among the leaves of plants or in holes in trees. different tropical species cast up their eggs to the rear of leaves that grow over water.