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 ...
Read about different predator-prey relationships on the reef. Like lions on the prowl ... of full-grown sea turtles. One common defense against predators is a protective covering, such as a ...
Sedimentation, which screens out sunlight and kills polyps, is one of the principal causes of coral-reef decline worldwide. De-sedimentation by sea grass is a reciprocal service. Turtle grass ...