On 4 July 1971, Hanabiko the gorilla – known as Koko – was born at San Francisco Zoo. Any gorilla born in captivity could reasonably expect a degree of public attention but Koko captured the ...

There's plenty of animals that can communicate. But true linguistic mastery in the animal kingdom is harder to pin down. Few things in life spark the imagination quite like the idea of being able to ...

Koko, the celebrated western lowland gorilla, died at the age of 46 this week. Many people paid tributes to her by praising her signing skills. She's famous for her signing skills, but all is not what ...

Sound has been used for as long as there have been people and animals who want to talk. When birds sing they are communicating. When a cat meows it could be asking for food. This barking dog is ...

Words matter and as our understanding of social justice evolves, our language evolves along with it. Here's how to remove speciesism from your daily conversations Animal rights activists have been ...