single "golden poison frog" harbours enough poison to kill 10 grown men, making these frogs perhaps the most poisonous animals alive. They are one of many species of toxic frogs, which are known as poison dart frogs. They are all small: the largest are no more than 6cm long, and some are just 1.5 cm. How did these tiny, beautiful creatures become so poisonous,
All frogs have poison glands in their skin, but some species have weak toxins which are harmless to humans and pets. Others have strong toxins that are harmful to humans and pets
