In this edition of Ask a Marine Biologist, Dr. David Shiffman answers one of the most-asked questions about sharks—are they mammals, fish, or something else?

Orca moms “baby” their adult sons and continue to hunt for them well into adulthood – a move that could harm endangered populations in terms of new births, research shows.

Underwater photographer, Kate Jonker's, 15-year-long search for the dugong, ended in success in the Red Sea. Read more about her incredible experience with this marine mammal.

A new study has found that some fish can recognize their own faces in photos and mirrors—a sign of self-awareness. The finding suggests self-awareness may be more widespread among animals than previously thought.

Fish are always on the move, darting in and out of focus. While portraits can be challenging, these tips will help you take photographs that truly stand out.

Cool critters and hot colors are signatures of British Columbia’s superlative scuba diving. Hundreds of dive sites await in the emerald seas surrounding 300-mile-long Vancouver Island.

For years, Mexico’s Isla Guadalupe has been a dream destination for shark lovers. That dream is no more; the Great White cage diving hot spot has been permanently closed to tourism.

Antarctica and its ocean have long-intrigued explorers, scientists, fishermen and those bitten by the extreme environments travel bug. Still, with another summer season opening the Southern Ocean up for visits, there’s a lingering concern: are we too loud for the locals?

New scientific evidence suggests that fish like to play in the same way that puppies, humans and other species do. Further studies are needed to confirm the hypothesis.