Poison dart frog
Unlike most frogs, these are active during the day. They often have brightly-coloured bodies, which act as warning colouration. Although all dendrobatids are at least somewhat toxic in the wild, levels of toxicity vary greatly from one species to the next, and from one population to another. Many species are critically endangered. Blue poison dart frogs are poisonous because they eat ants and other small insects that have toxins in their bodies. If an animal eats the frog, it will become very sick.