Same-sex behavior is widespread in primates and may help strengthen social bonds and improve survival under challenging ...

Research led by the University of Sydney is reshaping scientific understanding of one of the world's most widespread canine ...

A world of increased heat from climate change means that “entire generations of sexually reproducing reptiles will be dramatically skewed male or female.” This skews the entire balance of species.

Research led by the University of Sydney is reshaping scientific understanding of one of the world's most widespread canine ...

Long before humans became master hunters, our ancestors were already thriving by making the most of what nature left behind. New research suggests that scavenging animal carcasses wasn’t a desperate ...

Sensitive hearing may have evolved in mammal ancestors far earlier than scientists once believed. By modeling how sound moved ...

One of Earth’s earliest mass extinctions wiped out most ocean life during a sudden global ice age. From the ruins, jawed vertebrates survived, diversified, and transformed the course of evolution.

D inosaurs once roamed in Utah ’s Dinosaur National Monument Park. The evidence is embedded in the rocks, but some enormous – and previously uncovered – fossils were recently dug up during what was ...

There are few things more joyful, if occasionally nerve-wracking, than having a pet in your home. And plenty of people agree.

As animals go about their lives ― eating, fighting, having babies ― they don’t always follow the script laid out for them by ...

At first glance, this mammal looks like a horse gone terribly wrong. But, in reality, Chalicotherium is far from a botched ...

Penguin colonies are declining worldwide; explore their adaptations, threats, and what their struggle tells us about Earth’s ...