Chimp sign language and human communication follow the same rules, suggests a study of wild chimps in Uganda, which found that more frequently used gestures were shorter, and longer signing sequences were made up of shorter, syllable-like gestures, two patterns known to apply to all human languages.

See the source article by following the link below:
Chimp sign language and human communication follow the same rules, suggests a study of wild chimps in Uganda, which found that more frequently used gestures were shorter, and longer signing sequences were made up of shorter, syllable-like gestures, two patterns known to apply to all human languages.