Scientists: Sonar images reveal sunken oil tanker off California coast, possible pollution threat

How I learned to love farmed fish; 'We don't have a choice anymore'

8-foot bull shark caught in the Potomac River; 'most dangerous shark in the world'

Leopard sharks give a thrill at California beach; 'everything will be fine'

Divers steal from Holland 5 submarine off Sussex coast

Diver missing in Florida spring was training to be a dive instructor; 'they can’t find him'

Jakarta demands $2.7bn for spill compensation from Thai company

Scientists: Marine animals suggest evidence for a trans-Antarctic seaway; 'we knew we were onto something very interesting'

Search is heating up for Bonhomme Richard with 'the latest and greatest equipment'

Researchers: Search for Arctic shipwrecks comes up empty; 'I prefer it that way'

Minnesota farmer battles Gulf dead zone; 'I want to be a chloroplast'

Double shark-attack victim returns to Kiwi beach; 'I should have died'

Sea urchins tested as algae removers; 'It exceeded our expectations'

Is this the world's ugliest fish? Odd-looking animal nicknamed Shrek by scuba divers

Potential world record tilapia caught in Florida river; 'They suck in the bait, then spit it out'

Killer whale evolution leads to two orca species; large and pygmy rapidly diverging

Brit aquarium may hold world record breaking lionfish

Paddle-surfer captured risking life and limb to enjoy close view of a 40-ton acrobatic whale

Lost gold of the Whites found in Lake Baikal; 'rectangular blocks with a metallic gleam'

Research: Canadian river metals links to oil sands; 'all natural' is wanting

Montenegro: Diver accidentally harpoons tourist

Tourism worry as tar balls continue to pollute Goa beaches