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Cyanide is one of the best known of all poisons. Perhaps best known as the suicide pills reputedly carried by secret agents it was also the active ingredient in the gas (Zyklon B) used by the Nazis in extermination camps such as Auschwitz.
1. A poison dart frog is also called poison arrow frogs. They are very attractive vibrant colored frogs but they can be deadly if misused. Their toxin is their protection.Their beautiful colors are a warning to predators that they are deadly. 2. There are over 100 species of this frog. poison dart frog is also called poison arrow frogs. They are very attractive vibrant colored frogs but they can be deadly if misused. Their toxin is their protection. Their beautiful colors are a warning to predators that they are deadly. 2.