A beloved symbol of biodiversity, the red-eyed tree frog, shown here in Panama, has evolved a flexible strategy for survival. Christian Ziegler Karen Warkentin, wearing tall olive-green rubber ...

Scientists have discovered millions of animal species. Among them are some rare creatures with unique features and behaviours.

During their hikes in 2023 and 2024, they found what they were looking for: several populations of Malleco spiny-chest frogs. Photos show the rediscovered species. Some of the olive-green and ...

DESCRIPTION: Stockier than other leopard frogs, the Chiricahua looks like a small bullfrog with spots. The adult ranges in size from about two to five inches in length, and females are larger than ...