From cannibalism to clones, here are 5 reasons sharks have mammals beat when it comes to pregnancy drama.

Recent expeditions to Easter Island's deep coral reefs have uncovered a wealth of fish that may be new to science.

The Bahamian island of San Salvador is home to 35 moored sites for scuba divers — and sharks to enjoy.

Mangroves are a biological oddity that links land and sea.

Jellyfish stings happen— find out how to avoid and treat jellyfish stings with these tips from Divers Alert Network.

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Ever wonder why baleen whales became so colossal? Scientists have a theory.

The NOAA ship *Oscar Elton Sette* is on a 24-day research expedition to monitor, study and help the endangered species.

We just can't get enough of these nudibranch photos from the 2016 *Scuba Diving* magazine photo contest.