Opportunity for Animals as the Tides Ebb and Flow
In Opportunity for Animals as the Tides Ebb and Flow, narrator Sir David Attenborough examines how the Moon’s impact on the Earth and the tides create opportunity for animals, like the bottlenose dolphins who move into shallow waters at high tide to feast on mullets. 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 narrator describe the tides?
A: He describes them as a pulsing clock and a rhythm, but even more importantly — as an opportunity.
Q: How do the dolphins work together to hunt the mullet fish?
A: One animal leaves the group and swims in a circle, stirring up the mud and driving the fish to leap out of the water toward the other dolphins.
Q: Why do the dolphins have to stop eating the fish when the tide is low?
A: The dolphins need to swim in deeper water, so they go back out into the deeper water when the tide is low.
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