Recent studies are finding that the language abilities of some monkeys are more sophisticated than previously believed.

Elephants rely on a complex communication system to sustain their clan-based society. At the root of it is a common language.

Some "horse whisperers," like Mark Rashid, specialize in helping riders and trainers communicate with their horses. Good communication helps improve a horse's behavior.

Eight-year-old Thomas was born with a rare genetic disorder, which resulted in a lot of trouble communicating with his parents. Now, Thomas undergoes dolphin therapy in the Florida Keys.

Dolphins use sound to detect the size, shape, and speed of objects hundreds of yards away. The dolphin's natural sonar, called echolocation, is incredibly precise

Among the most highly socialized of all animal species, chacmas rely on a complex and varied communication system with visual signals, vocal gestures, and body language.

Chacma baboons draw upon a rich repertoire of vocal signals to express themselves.

Adult male chacmas have earned a "tough guy" reputation. Visually assertive displays may serve to get a message across before a physical brawl occurs.

Like all primates, chacma baboons often express themselves through physical contact, from reassuring touches and pats to antagonistic bites and swats.

In recent years, new techniques and technologies have allowed scientists to listen more carefully -- and realize that giraffes may be talking after all.