Zoology

Mosasaur teeth discovered in North Dakota tell a surprising story

A new, non-invasive method to track amphibian hormones may reveal how the creatures weather rising threats in the wild

The soft rumbles seem to reveal more about a feline than their meows, and it’s probably thanks to humans

Researchers recently discovered an extremely small frog species in Brazil

Combining brain and brawn, the two marine mammals may hunt collaboratively

People in ancient China grew a millennia-spanning friendship with wild felines long before domestic cats came on the scene

Some parts of Africa lack megaherbivores—salt scarcity in the environment could explain why

Most people in a recent survey saw sharks as neutral, coinciding with a global treaty to protect declining species

The calls of our closest living evolutionary cousins still hit an ancient target in the human brain

Pond frogs nonchalantly dined on the venomous insects, hinting at special mechanisms that help the amphibians avoid pain—and grisly deaths

Array of camera traps captures surprising images of tigers in the wild

Although the plume boom is over, bird feathers still push fashion’s cutting edge