How astronauts spend 10 days underwater preparing for deep space

Mysterious orange water at Dubai Marina raises concerns

Scientists battle storms in mission to study Greenland shark

Watch: Florida men swim with whale shark

Carcass of 250-pound fish found at Oregon's Keno Dam; 'It was quite a surprise'

This cuttlefish's secret trick: Pretending to be a crab

1,000 Kilometers from the coast, bears gorge on ocean fish

Lobstermen win concession to fish in coral protection zone

Video: Bald eagle snatches bait fish off boat

They're here: Tampa residents shocked to find bull sharks in Hillsborough River

Antarctic researchers take icy plunge to mark solstice

The McCulloch: A century after sinking, this storied ship Will remain underwater

Real killer whales! Porpoise fights for survival as it is hunted by two mother orcas and four babies

Marine mammal group: Young beluga whale struggling after relocation

It is not written: Whales doomed to starve inside north-west Australian coral reef make miraculous escape

Auditing the blue blood bank: Horseshoe crabs have been saving our species--are we endangering theirs?

Tokyo's Tsukiji fish market to move, but will return after 5 years

42 years later: Why the legacy of 'Jaws' has nothing to do with the shark

Shark expert weighs in on recent great white sightings off Southern California; 'It's a good thing'

The £90 airbag for swimmers that could prevent drowning: Inflatable collar activates when it senses an emergency in the water

Marine pollution: Needle fish found in a plastic cup from Karachi sea

Humpback shows off impressive headstand skills for boatload of lucky tourists

Face to face with a humpback whale: A photographer's point of view

Fishing TV shows rigged? It depends what you mean

Surfers take to the night to avoid crowds; 'I don't wanna see it coming!'

Florida man bailing water accused of disturbing manatees

Quiet please, the fish Are flirting: Fish that fart together stay together

Video gives rare, up-close view of humpback whales lunge feeding in Monterey Bay