Sperm Whales: Giants 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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