The Darwin's frog, named after Charles Darwin, faces extinction after the introduction of the chytrid fungus to their habitat.

Eleven endangered male frogs that traveled 7,000 miles in a bid to save their species from extinction have “given birth” to 33 froglets at London Zoo.

Southern Darwin's frog tadpoles grow up inside the vocal sacs of their fathers and are 'born' through their mouths as froglets. The brooding dads made an incredible 7,000-mile journey by boat, plane, and car to London Zoo from their remote island off the southern coast of Chile.