Frog tour: Panama golden frogs mating at the Bronx Zoo

Like other amphibians, frogs are declining worldwide due to pollution, habitat loss, climate change, introduction of alien species, and the outbreak of a devastating fungal disease known as chytridiomycosis. More than 100 species are known to have gone extinct since the 1980s and more than one third of the world's remaining species are considered endangered according to the IUCN Red List compiled by scientists.

Panama golden frogs mating at the Bronx Zoo