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The lovely poison frog is also known as the striped poison dart frog. This is one of the least toxic of the Phyllobates genus (but is still in the most toxic genus of poison frogs). Though it indeed looks lovely, it is still deadly. It can hold enough toxin to cause heart failure in predators that try to eat it.12 The lovely poison frog is native to Central America and is found throughout Costa Rica, southeastern Nicaragua, and central Panama.