Why Sea Life Loves to Eat Mackerel!
In Why Sea Life Loves to Eat Mackerel!, narrator Sir David Attenborough explains how dolphin, shearwaters, and tuna all engage in a feeding frenzy with mackerel and how the animals work together. 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 resides there.
Lesson Express
Q: How do the dolphins and shearwaters help each other?
A: The dolphins drive the fish up toward the surface, and both the dolphins and the shearwaters prevent the fish from leaving one space.
Q: What third predator joins the feast along with the dolphins and shearwaters?
A: Yellowfin tuna join in the feeding frenzy.
Q: What allows the mackerel to finally escape?
A: Once the tuna leave, the mackerel are able to start sinking down to a depth the shearwaters can’t reach.
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