This week we talk with David Shiffman, a marine biologist with Arizona State University, and fun science communicator who speaks with wit and knowledge about sharks and the ocean, their evolution, strange and varied reproductive strategies and the politics of conserving them.  Hearing from a shark expert like Shiffman is its own kind of thrill.  So dive in with us on this episode of the Rising Tide Ocean podcast.   Rising Tide, the Ocean Podcast is co-hosted by Blue Frontier's David Helvarg and the Inland Ocean Coalition's Vicki Nichols-Goldstein. This podcast aims to give you information, inspiration and motivation (along with a few laughs) to help understand our ocean world and make it better. The ocean is rising, and so are we!Learn more at bluefront.org

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