Scientists have discovered the oldest-known fossil of a tadpole, dating back approximately 161 million years to the Middle Jurassic period Scientists have discovered the oldest-known fossil of a ...

The green-and-black poison dart frog is native to Central America and the north-west part of South America The huge diversity of frogs we see today is mainly a consequence of the asteroid strike that ...

Long believed to be a single species hopping along stream banks across Borneo, a common rainforest frog is revealing itself to be several different species. It’s also leaving scientists with questions ...

Early in development, many animals pick a team — male or female — based on their genetics, and, with time, acquire the characteristics to match. New research from the Marine Biological Laboratory (MBL ...

The realization has big implications for how scientists think about evolution. Phenotypic plasticity offers a solution to the crucial puzzle of how organisms adapt to environmental challenges, ...

This newly discovered poison frog may represent an evolutionary step on the pathway towards developing brilliant warning coloration associated with other poison dart frogs. A small reddish-brown frog ...