is a great book that explains all the incredible variations on gender, gender fluidity, can you fuck long time multiple genders (much more than two!) that exist here on earth. Plus, it's funny as hell. I seem to remember that the whole point of Jurassic Park was that frogs can switch sexes if there are no males, so their brilliant plan to keep the dinos from breeding little dinos by keeping them all female didn't work. They filled in the missing part of the DNA sequence with frog DNA. You'd think they'd check those things first, being such a bunch of genuises and all. Now I know Jurassic Park is junk science, and why they used frog DNA and not chicken DNA makes no sense if dinos evolved into birds, not amphibias but there I go thinking again. Anyway only male? Haven't heard of it. There has to be an egg, and egg means female, right? Oh, but then there's asexual reproduction