With too few tritons on the reef, crown-of-thorns starfish populations can explode, jeopardizing the living coral that makes ... of full-grown sea turtles. One common defense against predators ...

Australia’s Great Barrier Reef alone contains more than 400 coral species, and these support 1,500 fish species, 4,000 mollusc species and six of the world’s seven sea turtle species.

For example, hawksbill turtles eat lots of sea sponges, which would otherwise out-compete reef-building corals. So the turtles help to protect the coral reefs, which are crucial for the survival of ...

At dawn, one of the reef's most charismatic inhabitants, the green turtle ... In the desert sands of Egypt, coral reefs thrive in the shallows of the Red Sea, providing bottlenose dolphins ...

The shells of the hawksbill sea turtle have been used for luxury items ... protections are needed most Though they feed along coral reefs, hawksbills return to the beach to nest.

Dredging and dumping for these facilities have already created a 20-mile sediment plume, ever creeping closer to world-renowned coral reefs and dive spots. Strandings of endangered dugongs and sea ...