The best places to go diving with great white sharks, hammerhead sharks, whale sharks, and more. Plus: How to do it safely.

No, whale sharks' eyeballs are not covered in miniature teeth. Here's what the discovery of dermal denticles in a whale sharks eyes actually means.

In Barbados, the local community works together to keep lionfish off the coral reefs and on the menu.

When and where to go snorkeling with five species of whales and dolphins.

The IUCN Red List is a collection of the best available scientific data analyzed and summarized by an international team of experts—such an assessment is not an opinion and not a guess. But such an assessment does not carry the force of law, and IUCN Red List Endangered status doesn’t mean the same thing as being considered endangered under the U.S. Endangered Species Act.

A guide to the best national parks for scuba diving from Maine to Florida to Alaska.

Project Aware amplifying diver voices to secure sustainable trading regulations for sharks and rays around the world.

A group of retirees in New Caledonia are documenting the population of poisonous reef snakes in Baie des Citrons as a part of a 17-year study.

Whale sharks, manta rays, oceanic whitetip sharks, sea turtles, monk seals and groupers are all endangered. Here’s how to help protect each one.