"848","Why Grandmothers May Need Large Brains. (Commentary on Skoyles on Brain Expertise)","Skoyles's case against human brain size being related to IQ is strong; but his case in favor of its being related to expertise is weak. I propose that the explanation for the evolutionary expansion of the human brain in fact lies far away, in the need to have a brain that could continue to function into old age.","http://cogprints.org/848/","Humphrey, Nicholas","UNSPECIFIED"," Humphrey, Nicholas (1999) Why Grandmothers May Need Large Brains. (Commentary on Skoyles on Brain Expertise). [Journal (On-line/Unpaginated)] ","","1999"