Large carnivores are both clashing and coexisting in the western United States. Although wolves dominate cougars and steal their prey, cougars' shift from elk- to deer-heavy diets, paired with a rugged landscape for escape, might help cougars avoid violent wolf encounters.

People searching for honey in Mozambique work with birds via a shared language in a rare case of cooperation between humans and wild animals. This language also comes with regional dialects — that appear to be driven by the birds.

A new study comparing 59 species of primates linked same-sex sexual behavior to scarce resources and more predators in socially complex species. The findings show diverse sexual behaviors are common — and likely beneficial in primates.

Scientists say grooves on a rock face overlooking the Adriatic Sea may have been made by sea turtles fleeing an earthquake.

Sharktober is real in Hawaii — and it's down to the reproductive pattern of predatory tiger sharks, an analysis of 30 years of data reveals.

An ancient and enormous organism called Prototaxites, initially found to be a type of fungus, may actually be an unknown branch of life, researchers say.