Language Log

Now they've done it — spliced human FOXP2, often called the "language gene", into some mice in Leipzig.  This won't give the mice anything new to say, but many people were certainly expecting them to start producing and analyzing more complex sound patterns.  Thus Juan Uriagereka ("The Evolution of Language", Seed Magazine, 9/25/2007):

Chimps, and our other close relatives the apes, certainly have the hardware for some basic forms of meaning […]. What they don’t have is a way to externalize their thoughts. I’d wager that chimps just lack the parser that FoxP2 regulates.

Uriagereka suggested that "Because of the similarities in brain structure and in the syntax of their song, finches must also have this parser", created by the songbird version of Foxp2. If this bold conjecture were true — that certain alleles of this particular gene create a "parser" in the brain — then the mice recently gifted with a "humanized" form of foxp2 should exhibit some striking abilities, such as recursively-structured squeaks.