Humans and other primates have evolved 'significantly larger' voice boxes than other mammals to help with social interactions, a new study shows. Compared with other mammals of about the same size, ...

A study involving Koko, known to be the most intelligent gorilla in the world, suggests that humans may not be the only primate with speech capabilities. Researchers found that Koko's species can also ...

Scientists have discovered that the larynx, or voice box, of primates is significantly larger relative to body size, has greater variation, and is under faster rates of evolution than in other mammals ...

Koko the gorilla is already famous for her ability communicate with her keepers using sign language, but now she is showing signs that she may be able to learn to talk. Simple sounds learned by the 44 ...

Apes may be closer to being able to speak than previously thought, new research suggests. In the 1930s and 1940s, "a couple of husband-and-wife teams of psychologists tried to raise chimpanzees as ...