The organization ReShark works to help threatened shark populations bounce back in a unique way.

There's no question that most scuba divers share a deep-rooted love with the ocean. But are divers taking as many precautions as possible to protect the ecosystem they adore? This organization provides above-and-beyond training to help divers become as sustainable as possible.

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

ICCAT helps set sustainable fisheries management quotas for tuna species in the Atlantic Ocean. Here’s what to know and how to get involved.

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

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.

The latest "Ask a Marine Biologist" 

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.