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

The creatures have a unique reproductive strategy: after the females lay eggs, the male frogs protect and rear the tiny tadpoles inside their distensible vocal sacs for them to develop in safety.

The expedition was also captured on film by wildlife filmmaker Paul Glynn, who trekked through the forests of Tantauco Park ...

The froglets were carried in the vocal sacs of 11 male Darwin's frogs, the zoo said. The male frogs rear their tadpoles until ...