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powerpoint presentation marine mammal madness: fact sheet key terms: •a mammal is an animal that is warm blooded, has hair, gives birth to live young, and feeds their young with milk. •marine mammals include cetaceans, pinnipeds, sea otters, sirenians (manatees and dugongs) and polar bears.
•seals, sea lions, and walruses are pinnipeds. •mustelids are a group of mammals that includes weasels, ferrets, and otters. •sea otters are keystone species; these are organisms whose existence is critical to the balance of their ecosystem....
https://www.georgiaaquarium.org/wp-content/uploads/2020/04/Marine-Mammal-Madness-DSL-Final.pdf