Second Nature: Gender and Sexuality in the Animal World

About Second Nature: Gender and Sexuality in the Animal World

Did you know that clownfish change sex from male to female? (So if Nemo’s mom had died in real life, his dad could have become his mom!)

Drew Denny's Second Nature: Gender and Sexuality in the Animal World is a 2026 comedy documentary film. Released in June 2026, it runs 82 minutes.

Elliot Page stars as Narrator (voice), Joan Roughgarden as self, Patricia Brennan as self, and Amy Parish as self. Written by Drew Denny. It was produced by Annapurna Pictures and PageBoy Productions.

Shelv files it under animals, nature, homosexuality, and biology.

One Life, The Lion King, and The Revenant make useful companions to Second Nature: Gender and Sexuality in the Animal World, all filed under natural history.