Sperm Whales: Giants of the Ocean
In Sperm Whales: Giants of the Ocean, narrator Sir David Attenborough follows one mother sperm whale and her calf. 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 do you observe about how sperm whales sleep?
A: They sleep vertically in the water.
Q: How does the mother’s calls change? Why?
A: The clicks are louder and quicker because she is using sonar to catch a squid.
Q: Sperm whale calves can’t deep dive until they are six years old. What does this tell you about sperm whales?
A: They stay with their mothers for a long time.
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