The first four-legged vertebrates did not grow up like tadpoles after all. That idea has shaped the story of life on land for ...

From wolves navigating the night to monarch butterflies crossing continents, animals constantly adjust their behavior to survive. These adaptations are shaped by natural rhythms, environmental ...

NEW YORK — Scientists have long posited the earliest water animals to transition to land had amphibious tadpole features, ...

Life on our planet began in the water. Eventually, one branch of the fish family tree developed legs and came up on land.

Relatives of the llama are dropping dung as they venture into higher elevations in the Andes Mountains, providing a nutrient-rich environment for life to thrive despite glacier loss. Climate change is ...

Spanish neuroscientist Félix Viana will coordinate an international project to study the molecular basis of cold perception funded by The Human Frontier Science Program. With a multidisciplinary ...

On a remote stretch of Costa Rica's Pacific coast, the lush, volcanic landscape meets a dry tropical forest. Two unlikely creatures, the sea turtle and the jaguar, collide with spectacular ...

Habits are often seen as automatic and inflexible behaviors. But a new study, published in Evolution Letters, suggests that ...

"Our results clearly demonstrate that mammals are responding to the urban environment by changing their behavior. Much less clear is what these changes mean in terms of urban mammalian diversity, ...

Climate change is melting away glaciers around the world, but in the Andes Mountains, a wild relative of the llama is helping local ecosystems adapt to these changes by dropping big piles of dung.

Baby crocodile-like early tetrapods called embolomeres. New fossil evidence suggests that these embolomeres did not undergo a metamorphosis the way that modern amphibians do when growing up, which ...