The Blue Dart Frog is a small, blue and black poisonous frog that lives in rainforests of Central and South America. It grows to about 2 inches long and weighs 0.3 ounces. As a carnivore, it eats small insects and protects itself with a deadly poison that can kill 20,000 mice. The Blue Dart Frog is endangered due to habitat loss from deforestation.