Second Nature — A documentary about everything you didn’t learn in high school biology.

Everything you didn’t learn in high school biology.

Did you know that clownfish change sex from male to female? (So if Nemo’s mom had died in real life, his dad would have become his mom!) Did you know that albatross, penguins and swans parent in same sex pairs? Or that bonobos, who are just as closely related to us as chimps, are matriarchal and have same-sex sex every day?!

Debunking myths that females are “inferior” and being queer is “unnatural,” Second Nature follows trailblazing trans Evolutionary Biologist Dr. Joan Roughgarden as she meets other groundbreaking scientists exploring the 1500+ animal species who engage in same-sex sexual behavior and parenting, change sex, form matriarchies, and more…

Second Nature — everything you didn’t learn in high school biology.

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Screenings

April 24, 2026 — Reel Wild NYC
AMC Lincoln Square 13,New York, NY
March 21 + March 23, 2026 — Roze Filmdagen, Amsterdam LGBTQ+ Film Festival
Dutch Premiere — Saturday, March 21 at 3:00 PM
Second Screening — Monday, March 23 at 8:00 PM
Amsterdam, Netherlands
March 12, 2026
Screenings & Q&A — SXSW EDU
Austin, TX
February 14, 2026 — Mardi Gras Film Festival
Sydney, Australia
November 10, 2025
Canadian Premiere — Image+Nation Film Festival
Montreal, Quebec
October 27, 2025 + November 2, 2025
International Premiere — Mix Copenhagen
Copenhagen, Denmark
October 18, 2025
World Premiere — NewFestSOLD OUT
New York, NY