Predators and Defenders of the Coral Reef
In Predators and Defenders of the Coral Reef, narrator Sir David Attenborough examines what happens when predators descend on the coral reef. Learn how a crab protects the reef. Learn how parrotfish’s actions add up to creating beaches and islands. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.
Lesson Express
Q: How does the crown-of-thorns starfish eat coral?
A: It spits out its guts and digests coral.
Q: How do the crabs help the coral?
A: The crabs attack the starfish from underneath.
Q: Why do parrotfish eat rock and coral?
A: They’re actually looking for the algae.
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