Tiny, endangered Chilean froglets born in London after dramatic 7,000-mile rescue

The tiny endangered Darwin’s frogs have been born at London Zoo after a dramatic 7000-mile rescue - (ZSL/PA Wire)

Tiny endangered Darwin's frogs have made an epic journey of thousands of miles from the forests of southern Chile to London, nestled safely inside their fathers' vocal sacs.

London Zoo said on Monday that 33 of the frogs, named after scientist Charles Darwin who discovered the species, were born in their new home as part of a rescue mission to save the species from extinction.