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Episode 704: The Secret Sex Life of Fish

Fish are the most diverse group of vertebrates on the planet, ranging from the gigantic whale shark to the tinniest minnow. Because of their diversity, fish have evolved very varied reproductive strategies that aren’t widely known by the general public. Few people realize that some of these animals are capable of changing sex. Some fish species start their lives as females and later turn into males, others start as males and become females, while yet another group is comprised of simultaneous hermaphrodites, meaning they can spawn as both males and females. Discover the unique ways of how some fish species do this and why they likely evolved this way.


Meet the experts featured in this episode.

Special Thanks:


Fairfield Inn & Suites
by Marriott Ft. Pierce
6502 Metal Drive
Ft. Pierce, FL 34945
(772) 462-2900

Image Credits

Changing Seas would like to thank the following individuals and institutions who kindly allowed their footage, images and other media to be used in this production:

Anna DeLoach

Ned DeLoach

Grant Gilmore

Chris Koenig

NOAA’s Sustainable Seas Expedition, 2001


Bill Parks

Special Thanks:

Anna DeLoach

Paul Humann

Theodore Pietsch

Bill Tyler

Web Extras

ORA Behind The Scenes

Funding for this episode of Changing Seas was provided by: