The Lonely Whale Shark's Journey
In The Lonely Whale Shark's Journey, narrator Sir David Attenborough explains that no one knows for sure where whale sharks give birth but scientists have an idea. 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: How large is a whale shark?
A: It can be as long as an aircraft and weigh up to 20 tons.
Q: What question do scientists have about whale sharks?
A: They don’t know where they give birth.
Q: Why do the silky sharks bounce off the whale sharks?
A: They may be trying to scrape off parasites.
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