Changes in the Coral Reef
In Changes in the Coral Reef, narrator Sir David Attenborough describes how one diver is capturing the coral bleaching around Lizard Island in Australia. This video is excerpted from BBC’s Blue Planet II, a natural history series that explores the world's oceans, the animals that live in them, and the threats they face, using modern filming techniques and equipment to capture previously unseen areas of the ocean.
Lesson Express
Q: What did the diver notice about the corals?
A: They were becoming bleached.
Q: Why were the corals becoming bleached?
A: El Niño raised water temperatures to record levels, causing corals to lose their nourishing algae and exposing their wide skeletons.
Q: What impact might the coral bleaching have on fish like Percy?
A: It will threaten their survival, too.
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