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Thinking about scuba diving in caves? These five courses — from entry-level to advanced — will prepare you for the thrilling experience of cave exploration.

In this installment of Ask a Marine Biologist, Dr. David Shiffman answers a common question about shark biology and behavior.

A marine biologist discusses everything you can learn from the recent release of the annual, International Shark Attack File report and how to spot misleading information.

Divers have access that can help save the world—become a citizen scientist and join the fight on the front lines.

An undiagnosed PFO adds to the perfect conditions for a post-dive incident in this edition of Lessons for Life.

How earning my Open Water certification gave me the confidence I needed to set aside self-doubt.

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I position the rubber sling between my thumb and forefinger, locked, loaded and ready for action.