The New York Times is reporting:
"Human beings are not the only ones who are able to string sentences together.The return of the Monkees!
MONKEYS are able to string together a simple “sentence”, according to research that offers the first evidence that animals might be capable of a key feature of language.
British scientists have discovered that the putty-nosed monkey in Nigeria pictured above sometimes communicates by combining sounds into a sequence that has a different meaning from any of its component calls, an ability that was thought to be uniquely human.
The putty-nosed monkeys, Cercopithecus nictitans, of the Gashaka Gumti National Park, have two main alarm call sounds. A sound known onomatopoeically as the “pyow” warns other animals against a lurking leopard, and a cough-like sound that scientists call a “hack” is used when an eagle is hovering near by. ... A particular sequence of pyows and hacks appears to mean something entirely different. ...When the male utters this “sentence”, consisting of up to three pyows followed by up to four hacks, it seems to be a command telling others to move,generally to find safer, less exposed terrain. They use the signal not only when predators are around, but also during ordinary activities such as foraging. It seems to mean “let’s get out of here”. “The pyow-hack sequence means something like ‘let’s go’ whereas the pyows by themselves have multiple functions and the hacks are generally used as alarm calls.”