11. "We don't have a natural kind of a world now ." 12. Green emeralds are a " natural kind ", but grue emeralds are not. 13. Realism is the philosophical position that species are real mind-independent entities, natural kinds . 14. Carradine is a natural kind of guy whose fondness for animals is shared by his entire clan. 15. The nature of universals in Aristotle's philosophy therefore hinges on his view of natural kinds . 16. If it's the natural kind you're after, there's always the other Martha. 17. Hence, her fundamental claim is that both sex and gender are social constructions, rather than natural kinds . 18. There is the natural kind that is occurring in the bush, with predators stalking and chasing and devouring their prey. 19. In sum, he was a human rain delay, as though there weren't enough of the natural kind . 20. In other words, having such and such essential properties is a necessary condition for membership in a given natural kind .
