question: What example did Darwin give of eyes evolving ?
answer: simple eyes found in invertebrates , starting with nothing more than an optic nerve coated with pigment
turker_answer: The example Darwin gave of eyes evolving was of simple eyes found in invertebrates start with nothing more than an optic never coated with pigment .
rule-based: Darwin gave simple eyes found in invertebrates , starting with nothing more than an optic nerve coated with pigment of eyes evolving .