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Bufo
''Bufo'' is a large genus of about 150 species of true toads in the amphibian family Bufonidae. ''Bufo'' is a Latin word for toad.
== Description ==
True toads have in common stocky figures and short legs, which make them relatively poor jumpers. As with all members of the family Bufonidae, they lack a tail and teeth, and they have horizontal pupils. Their dry skin is thick and warty.
Behind their eyes, ''Bufo'' species have wart-like structures, the parotoid glands. These glands distinguish the true toads from all other tailless amphibians. They secrete a fatty, white poisonous substance which acts as a deterrent to predators. Ordinary, handling of toads is not dangerous, and does not cause warts in contradiction to folk beliefs. The poison of most if not all toads contains bufotoxin; the poison of the Colorado River toad (''Bufo alvarius'') is a potent hallucinogen containing 5-MeO-DMT and bufotenin. The poison's psychoactive effects are said to have been known to pre-Columbian Native Americans.〔Oroc, James. 2009. "Tryptamine Palace: 5-MeO-DMT and the Sonoran Desert Toad", Page 108 Park Street Press〕
Toads can also inflate their bodies when threatened. Males are usually smaller than females and possess a Bidder's organ, an incomplete ovary. The adult male of many species shows a dark throat. Breeding males have dark nuptial pads on their thumbs.〔Conant, Roger. 1975. A Field Guide to Reptiles and Amphibians of Eastern and Central North America. Houghton Mifflin. Boston.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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