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Red-backed poison frog : ウィキペディア英語版 | Red-backed poison frog
The Red-backed Poison Frog (''Ranitomeya reticulata'')〔Icochea, J., et al. 2004. (''Ranitomeya reticulata''. ) In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. Downloaded on 31 May 2013.〕 is a species of frog in the family Dendrobatidae. It is an arboreal insectivorous species, and is the second-most poisonous species in the genus, after ''R. variabilis''. Like many species of small, poisonous frogs native to South America, it is grouped with the poison dart frogs, and is a moderately toxic species, containing poison capable of causing serious injury to humans, and death in animals such as chickens. ''R. reticulata'' is native to the Amazon rainforest in Peru and Ecuador.〔 == Poison == The red-backed poison frog is a moderately toxic dendrobatid, and is the second-most poisonous of the frogs in the ''Ranitomeya'' genus. Its toxins are used as the frog's natural defense mechanisms, making them inedible to many, if not most, of the predators in its natural area. To advertise its poison and further reduce the risk of injury, the red-backed poison frog displays its brilliant warning colors, especially its red-orange back, for which it is named. Like all dendrobatids, it does not manufacture its poison itself, but rather is theorized to take the toxins from the ants, mites, and beetles on which it lives. It absorbs the insects' poisons into its body, which is immune to the poison. The poison is stored in skin glands just beneath the frog's epidermis. The poison seeps through open wounds and orifices, and, it is believed, through the pores. This defense is especially effective against mammalian and avian predators, and, to a lesser extent, reptilian ones. Amazonian ground snakes have a limited resistance to the poison, and occasionally will attack such frogs.
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