Researchers observed intense violence between two formerly friendly sets of chimpanzees in Uganda. The findings may have ...

"I've known many of them for their entire lives. And now I'm watching them kill each other," says one researcher.

For two decades, researchers observed members of the Ngogo chimpanzee group of Kibale National Park in Uganda spend their ...

The world’s largest-known group of chimpanzees split into two factions that are now engaged in deadly combat ...

Uganda's Ngogo chimps have broken into two permanent groups, resulting in the killing of numerous adults and infants, say ...

Researchers who observed a murderous conflict unfolding in a once-unified group of wild chimpanzees say there are parallels ...

The first well-observed "civil war" in wild chimpanzees reveals that shifting social ties alone can fracture a group, ...

But the case was considered an anomaly, although there is genetic evidence suggesting this kind of split is a rare event ...

Fake swans at a Horsham beauty spot appear so realistic that local residents have been duped into ‘feeding’ them.

The Anti-Defamation League, which has been fighting anti-Semitism since it was founded in 1913, called the syndicated cartoon ...

These interactions are stable proof that humans and geese aren’t so different. Animals react aggressively to provocation and ...

Across the globe, several wild dog species thrive in some of the most challenging environments on Earth, from the African ...