Heatwaves have led to widespread deaths of animals like big-eyed tarsiers and flying foxes. Is there hope for species like this as temperatures rise?

Heliconian butterflies choose mates with similar wing patterns. Their genes make them do it.

City gardens and hotel rooftops can serve as refuges—and food corridors—for the troubled species.

Conodonts are actually older than the oldest previously known vertebrates, making them the earliest known “skeletonized” vertebrates in existence.

Scientists studying fallen civilizations suggest that the culprit is overshoot in combination with climate change. What does this mean for our current era?

Stunned marine biologists watched a young mother orca desperately trying to save her baby.

Could humans be responsible for the extinction of megafauna like giant sloths and mastodons?

Researchers tested various ski designs dating back 4,000 years to understand how human movement on snow has evolved.

The story of dingoes in Australia is the first recorded case where an introduced predator has taken on such a functional role in its adopted ecosystem.

Fish intelligence? Yes, many studies have documented the ability of fish to learn from their environment. Fish exposed to a more complicated environment have an edge in learning.