In this edition of “Ask a Marine Biologist,” Dr. David Shiffman discusses one of the ocean’s most likable echinoderm.

Personalities abound underwater—if you’re paying attention. See how one scientist changed their approach to navigating the depths by starting to think of fauna as friendly encounters, not just subjects to be documented.

Sea Turtle, Inc., is on a decades-long mission to protect the South Padre Island turtle population from threats to their nesting grounds and more.

Corals in the Florida Keys are being ravaged by warming waters, diseases, overfishing, storms and more. Here's how some people are banding together to give them a fighting chance.

Few ocean critters are more charismatic than captivating cephalopods—squid, octopuses, cuttlefishes, nautiluses—and as divers, we can't get enough.

Can sound save coral? One researcher is working to answer this question.

The latest "Ask a Marine Biologist" 

The typically inconspicuous giant Australian cuttlefish puts on a spicy performance during mating season 

What organizations do divers need to know about? Dr. David Shiffman features the Angel Shark Project. The Angel Shark Project and Angel Shark Conservation Network use data from scuba divers to understand and protect critically endangered sharks.