Sharpen your coral-ID skills with these expert tips on how to identify mountainous star coral, or Orbicella Faveolata.

Aquatica Submarines announces Discovery Inc. as expedition media sponsor for scientific expedition to Belize’s Blue Hole and shares date for live broadcast.

Sharpen your coral identification skills with these tips on how to identify rose coral.

Scuba Diving magazine and Seiko Watches name Ken Stewart the 2018 Sea Hero of the Year for his work with Diving With a Purpose and the National Association of Black Scuba Divers.

Ned and Anna DeLoach are rock stars, with ­legions of fans who track them like groupies. Each year the beloved naturalists induct divers into the wonders of fish-ID surveys — and the importance of citizen science — during Marine Life Education weeks at Bonaire’s Buddy Dive Resort.

Brown seaweed known as sargassum amasses in the Caribbean in record numbers.

Shark conservationist Mauricio Hoyos is honored as a Sea Hero by Scuba Diving magazine for his work studying sharks and educating others.

Sharpen your coral identification skills with these tips on how to ID smooth flower coral.

Does flash photography harm small ocean creatures? Pygmy seahorse expert Dr. Richard Smith offers guidelines for photographing these fragile creatures.