Birds taught us how to speak:
Linguists from MIT suggest that human communication could have evolved from older systems used by birds and primates.The bird was the word?
Previous research has found that humans derive the melodic part of language from birds. However, the authors also say we evolved our pragmatic content-carrying part of speech from other primates.
Linguist Shigeru Miyagawa said: "How did human language arise? It's far enough in the past that we can't just go back and figure it out directly. The best we can do is come up with a theory that is broadly compatible with what we know about human language and other similar systems in nature."