As shark encounters increase, will Southern California beaches soon get early-detection technology?

Watch: Massive bait school off the coast of Florida is devoured by hungry sharks, snooks and pelicans

Brave rescuers fight to cut huge 60-ton whale free from fishing ropes as it gasps for air and thrashes its tail

Underwater Great Wall attracts scuba divers for exploration, but deadly danger lurks

Ghostly graveyard of 60 perfectly preserved ancient shipwrecks is found by climate scientists at the bottom of the Black Sea

Mystic with 'power to control crocodiles' dies after being 'dragged underwater by the creatures in horrifying attack'

Avoiding Extinction Giving Mexico's rarest porpoise, the vaquita, a fighting chance in the face of poverty, corruption, and greed

Massive lingcod fish caught with an entire octopus in its mouth

Perfectly preserved World War 1 submarine found in the North Sea – with the bodies of all 23 lost crew members

Tasmanian rock lobster ropes found on dead humpback whale

New report shows worrying increase in dolphin deaths in Cornwall

The Kamikaze motorboats: Rare craft used as suicide attack vessels by Japanese troops during World War II found off the coast of Japan

UAE home to world's largest population of rare humpback dolphins

Florida Keys: What happened to Theater of the Sea after Hurricane Irma?

Lifeguard pleads not guilty In near-drowning At Chelsea Piers

Going diving in the tropics? Study says don't eat the reef fish!

Breeding industry of puffer fish help develop tourism in Jiangsu

Feature: Iceland reaps riches from warming oceans as fish swim north

Massive great white shark gives camera close-up view of jaws

Australia: Gold Coast man survives nearly being stabbed in the head by a marlin

Scotland: Over 300,000 salmon escaped fish farms in 2016

Australia: Giant shark stalks beach where Laeticia Brouwer, 17, was killed

Diving suit fundraiser to hang up his helmet after underwater marathon

Amazing underwater footage shows the life of a seal off the Northumberland coast

Dubai to build world's first underwater resort 'Floating Venice'