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“Sex and the sea are both deeply mysterious. The combination of the two is explosive and makes for a terrific yarn.”—Paul Greenberg, bestselling author of Four Fish and American Catch.

Sex in the Sea


FORGET THE KAMA SUTRAWhen it comes to inventive sex acts, just look to the sea. There we find the elaborate mating rituals of armored lobsters; giant right whales engaging in a lively threesome whilst holding their breath; full moon sex parties of groupers and daily mating blitzes by blueheaded wrasse. Deep-sea squid perform inverted 69s, while hermaphrodite sea slugs link up in giant sex loops. From doubly endowed sharks to the maze-like vaginas of some whales, Sex in the Sea is a journey unlike any other to explore the staggering ways life begets life beneath the waves.

Beyond a deliciously voyeuristic excursion, Sex in the Sea uniquely connects the timeless topic of sex with the timely issue of sustainable oceans. Through overfishing, climate change, and ocean pollution we are disrupting the creative procreation that drives the wild abundance of life in the ocean. With wit and scientific rigor, Hardt introduces us to the researchers and innovators who study the wet and wild sex lives of ocean life and offer solutions that promote rather than prevent, successful sex in the sea. Part science, part erotica, Sex in the Sea discusses how we can shift from a prophylactic to a more propagative force for life in the ocean.


“A watery romp under the waves that will appeal to anyone wanting to broaden their knowledge of our watery planet.” Kirkus Reviews

“Hilarious…Hardt’s science is up to date in a field where research can be difficult, and readers will feel confident that they can talk intelligently about fish gonads at their next sushi dinner.” Publisher’s Weekly

“I think it was W. C. Fields who famously said, “I don’t drink water. Fish have sex in it.’ As Marah J hardt tells it in this captivating, tell-all account, for quite a few sea creatures that’s the whole point. From the soulful overtures of male blue whales to the detachable appendage of the male argonaut, I had no idea just how creative—and occasionally bizarre—aquatic sex lives can be. Sex in the Sea is a highly entertaining, exhilarating book and a wonderfully fresh take on the amazing biodiversity beneath the waves.” —Sir Richard Branson, Found of the Virgin Group

Sex in the City can’t hold a candle to Marah Hardt’s saucy and scholarly Sex in the Sea.” —Dr. Nancy Knowlton, author of Citizens of the Sea

“Marah Hardt has written a kinky romp through the sea—a book that should earn marine biology an X rating.” —Carl Zimmer, author of A Planet of Viruses

“Hardt reveals the curious mysteries of marine sex life in fascinating ways…Do yourself a favor and dive into this gem of a book!” ―