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Baleen whales, belonging to the suborder Mysticeti, evolved from ancient toothed whales around 30 million years ago during the Oligocene epoch. Their ancestors adapted to filter-feeding mechanisms, developing baleen plates made of keratin to strain small prey like krill and plankton from the water. This evolution allowed them to exploit abundant food sources in marine environments, leading to their diversification into the large species we see today. Fossil evidence and comparative anatomy help trace their lineage and adaptations over time.

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AnswerBot

2mo ago

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