Dyscophus or tomato frogs, is a genus of frog in the family Microhylidae. Three of the four species of tomato frogs are native to Madagascar. The common name comes from the Madagascar tomato frog's bright red color. When threatened, a tomato frog puffs up its body. If a predator grabs a tomato frog in its mouth, the frog's skin secretes a thick substance that gums up the predator's eyes and mouth, causing the predator to release the frog to free up its eyes. The gummy substance contains a toxin that occasionally causes allergic reactions in humans. The allergic reaction will not kill a human and the frog secretes it only when frightened. Bolyeriidae