Evolutionary argument uncovered in Genesis

Genesis says we descend from creatures who did not wear clothes. What is it to suppose such a thing, if not to infer phylogeny from ontogeny? "We are born naked, therefore our ancestors lived naked." Compare to the systematist, who reasons "Our fetuses are born amphibian, therefore our ancestors lived in the sea." Whoever thought up the naked-in-Eden idea, they were no dummies.