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).
Salamanders can absorb water, and even take in oxygen and release carbon dioxide (breathe) through their thin skins. Most adult salamanders also breathe with lungs, though the little Red backed and Four toed Salamanders lack lungs completely, and do all their breathing through the skin.