This is a great short article on the ambiguities of sex as expressed by humans, mammals, fish and various other creatures, and covers topics like chromosomal variety, embryonic sex determination, and reproductive strategies. It’s a nice Sex 101 – and by that I don’t mean sex as in f*cking, but sex as in male/female. A lot of reasonably smart and educated people seem to think that gender is variable but sex is “natural” and binary when in fact that’s not nearly as true either.
You’ve had your turkey. Now get your learning back on.