Did you know that there is a difference between a poisonous organism and a venomous one? Both types of animals contain a toxin, but the method of delivering the toxin is different. Venomous animals inject the venom into another species by a special apparatus such as fangs or a stinger, while a poisonous animal has the toxin on a big portion of their body. When another animal touches it or eats it, the toxin is passed. So, in one case, the toxin is injected, while in the other case it is ingested.
We have known of poisonous frogs for a long time. The golden poison dart frog from Columbia has been known for the toxin on their skin that is used by the native Emberá people in Columbia to tip the arrows used in their blowdart guns for hunting. These small frogs are only about 2 inches long and have enough toxin in them to kill 10 adult men!
One of these newly discovered species has a lot more venom than the other species. A single gram of the venom from the more toxic frog species, Aparasphenodon brunoi, could kill about 80 humans while a gram of the venom from Corythomantis greening could kill about six humans. These two species of frogs are not closely related, so it is thought that other venomous frogs may also exist. The researchers think that there might be some predators of these frogs that have become resistant to these toxins. Also, these frogs have great camouflage. The top of their heads resemble the bark of the trees. Pretty cool!
Edmund Brodie, Jr., a herpetologist at Utah State University in Logan, said "The strength of toxicity of the skin secretions is remarkable, and to say we were surprised by that is an understatement," He also said, "Amphibians have a wide array of skin toxins that have been well-studied, but this sort of mechanism - transmitting the toxin as a venom - has not been found before. It moves the study of amphibian defenses to a new level."
Maybe you will be the fortunate nature-lover to find a venomous frog! You never know what you will find in nature! #venomousfrogs