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| whales (Balaenoptera acutorostrata, Balaenoptera borealis, Balaenoptera musculus, Balaenoptera physalus, Eschrichtius glaucus, Megaptera novaeanglia, Physeter catodon) | |||
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| whale | |||
| cetacean Aquatic mammals, including the whales, dolphins, and porpoises; whale Large marine mammals of the order Cetacea; the body is streamlined, the broad flat tail is used for propulsion, and the limbs are balancing structures | |||