  The second question asked above was: what can be learned about the  innate basis of language from a consideration of the KE's and FOXP2.  In a recent article, Marcus and Fisher (2003) argue that the kinds of results discussed above offer valuable insights into the ways that  language is implemented in the brain and controlled (to the extent  that it is) by the genes. However, they refrain — rightly in my view — from drawing morals to the effect that FOXP2 is a  “gene for language” or even “for  articulation.” The effects of FOXP2 are wider than this (it is  expressed in the developing heart and lungs, in addition to the brain -- REF) and the functions of the neural circuits in which it is  active are as yet too poorly understood to do more than gesture at  the ways in which FOXP2 is involved in constructing the human  linguistic phenotype.