A. They live in family groups and travel in groups.
B. They do not migrate from cooler to warmer waters.
C. The young stay with their parents for almost fifteen years.
D. They do not desert the ill or injured members.
B
Dẫn chứng: Whales live in the ocean but, in terms of behaviours, they are more similar to humans than fish. They live in family groups and they even travel in groups when they have to migrate from cooler to warmer waters.
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