Fish sex — it’s weirder than you think | Marah J. Hardt | TEDxMileHigh

Did you ever wonder how fish have sex? Buckle up for a wild journey through the sex lives of everything from lobsters to anglerfish. In this hilarious talk, marine biologist Marah J. Hardt explains why sex in the sea matters, how we humans impact it, and what we can do instead to protect our oceans, and future generations of fish. At 17, Marah J. Hardt left high school early to study sharks in the Bahamas. There, she realized that our oceans face serious challenges and that scientists are (often) terrible at communicating them, which inspired her career in marine conservation & communication. She received her PhD in marine science from Scripps Institution of Oceanography and is working on solutions for overfishing, climate change, and the coral reef crisis. She is founder and CEO of OceanInk and the Director of Discovery at the Future of Fish. She wrote the book, Sex in the Sea. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at

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