Word Origin & History. moniker 1849, said to be originally a hobo term (but attested in London underclass from 1851), of uncertain origin; perhaps from monk (monks and nuns take new names with their vows, and early 19c. British tramps referred to themselves as in the monkery).
northern American bull frog (female) Frogs, toads, and salamanders belong to a class of animals called Amphibians. They are vertebrates (back-boned animals) with smooth (moist) or warty skins. They lay unshelled eggs, usually in water, and most species have a gilled, swimming larval stage (such as a tadpole).
E.encyclopedia NATURE. Frogs, toads, salamanders, newts, and the strange, wormlike caecilians are all amphibiansâa group of small, generally moist-skinned vertebrates. The word amphibian, meaning âliving two lives,â refers to the fact that most amphibians spend part of their lives in water and part on land.any young amphibians also have feathery gills to extract oxygen from water, but later lose these and develop lungs. Some axolotl salamanders keep their gills throughout life. Newts and salamanders have long tails and lizardlike bodies. They feed on slugs, insects, and other small animals.