Males of the South American species incubate their young in their vocal sacs. The London Zoo recently established a breeding ...

Photos from Aguirre, Apunte and Ron (2025) Cannatella’s tree frogs can reach about 1.3 inches in length, the study said. Their heads have “short” snouts, “heart-shaped” tongues and ...

For 130 years, a small Chilean frog vanished from scientific view. Biologists searched. Nature enthusiasts kept their eyes open. But Alsodes vittatus remained stubbornly invisible.