FROGS
a poison frog's colors are a warning to predators that they might be very poisonous, although most predators only see shades of gray. Some people think that the patterns on the frog are a sort of camouflage for those predators. Colors can be red, orange, yellow, green or brilliant blue. The deadly Phylobates terriblis poison frogs makes up the biggest percentage of frogs in the rainforest. Poison frogs actually belong to a family that has 170 species of brown to highly colored frogs. Poison frogs live in the rainforests of South- and Central-America. In those rainforests are temperature and air-humidity almost the whole year the same. The air-humidity is at least 80%. If the humidity drops to a lower percentage, poison frogs can desiccate in only a couple of hours and they will die. The temperature must be at least 22 degrees Celsius for many species, although some species live in the cooler forests up in the mountains.
The poison (toxin) of the frogs comes out of pores in the skin. The poison frogs are also called poison-dart frogs because some of the Amerindian tribes use them to poison their darts with. Not all poison frogs are deadly, only 3 species are very dangerous. Of those 3 is the Phylobates terriblis the deadliest. It's deadly poison is called Batrachotoxin and one frog is enough to kill 20.000 mice or 8 human beings.
Poison frogs lose a bit of their poisonousness in captivity. Some scientists believe they probably make the poison out of specific insects that they eat in nature. These insects eat specific plants which contains a substance, which the poison frogs also get in their bodies when eating the insects. With that substance they can make the poison what's coming out of the pores in the skin of the frog.
Green Tree Frogs can grow up to 1 1/4 to 2 1Ú2 inches in length. The habitat in which they are found is vegetation near a permanent body of water. They sleep during the day under large leaves and other shady areas. These Tree Frogs live together with several hundred individuals in a group. As with other species of tree frogs, this species would prefer to walk instead of jump.
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