6 132 innateness churma writes elephant big one blind man figure alone probably true especially blind man probably keep hands firmly contact beast anyway means taking heart warnings michael studdert kennedy characteristic motor systems evolved locomotion predation consumption mating matching perceptual systems evolved guide animan activities selection pressure shaping species perceptuomotor capacities come first instance physical properties world contrast perceptuomotor capacities must played crucial role form social species communication system certainly specialized neuroanatomical signaling devices often evolved typically done modifying preexisting structures enough perform new function without appreciable loss old language evolved within constraints preexisting perceptual motor systems surrender much power understand evolution disregard properties systems indeed universal set linguistic features owes nothing nonlinguistic capacities talkers listeners biological origin must due quantal evolutionary jump structure producing mutation modern biologists may look favorably evolutionary discontinuities darwin justified accepting discontinuity ruled continity done contrary primacy linguistic form cardinal untested assumption modern phonology result phonology sustained grand isolation surrounding disciplines sherman wilcox dept linguistics university new mexico