Few creatures are more fascinating than cephalopods, with their unparalleled (and truly unique) methods for deceiving both predators and prey. It's these methods, in part, that make them the ideal subjects for your underwater photos.

Discover Isla de la Plata, a unique scuba-diving destination just an hour away by boat from the coast of Ecuador, where you can see whales, oceanic manta rays, whale sharks, sea turtles and sea lions.

On Australia’s most easterly point, Nguthungulli Julian Rocks is a lesser-known spot with some of the best diving in Australia.

In this edition of “Ask a Marine Biologist,” David Shiffman discusses polar gigantism.

In this edition of “Ask a Marine Biologist,” Dr. David Shiffman discusses osmoregulation and whether fish can adapt to different environmental conditions

Always wanted to explore a wreck, but not sure where to start? We've got tips on wreck diving from a pro that will have you down there (safely) in no time.

Within coral reefs exists an intimate marriage between land and sea. Learn more about how these reef ecosystems have shaped our planet—and why it’s important to protect them.

Seabirds are adept divers. They just do things a bit differently than we do, since their “dive equipment” is built-in. Here’s what it’s like when these pelagic birds take the plunge.

Scuba divers love to share their favorite tips and tales from dive trips. This column highlights some of those. Ocean conservationist and sanctuary superintendent Sarah Fangman recalls a close encounter with a giant manta ray that seemed as engaged with her as she was with it.