Freediver works on coral replanting program in the Philippines

Robot divers uncover hidden underwater world in Chile

Decommissioned Thai warship sunk to turn into artificial coral reefs and diving spot

Snorkeller has near miss with a sea turtle

Chinese Coast Guard 'rams Filipino scientists' studying coral destruction in South China Sea

Philippine Coast Guard claims Chinese boats 'dumped crushed corals while building artificial islands in disputed waters'

Biologists discover degraded corals amid 'China's artificial island building activities in disputed waters'

Ancient coral reef seen flourishing in Florida

World's first example of wild snakes fighting over food in wild recorded in Colombia

Sea cucumbers 'crucial' for coral reef health, researchers claim

Researchers use 'revolutionary' underwater drones to take coral samples off Japanese islands

Superstitious Thai locals lay offerings at termite nests that look like intricate coral reefs

Philippine military finds 'severely damaged reefs caused by Chinese harvesting' in disputed waters

Experts voice concern over Thailand oil spill that may 'sterilise' corals off country's eastern coast

Dozens of snorkelers clamour for views of turtle off Thai island

Huge ancient reef discovered off Darwin Islands in Ecuador

Divers remove 30 kilos of fish nets stuck on coral reefs in Thailand

Tourist facing £23k fine for sitting on coral reef for underwater picture

Twenty tourists and guide arrested after damaging corals during 'sea walking' trip

Beautiful sea krait swims among fish in coral reef