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Mammals include the largest animals in the world, in the sea, in the air and on land: · The bison is the largest land mammal in Canada. It can weigh almost as much as a small car. · Humpback whales sing long, complicated songs. They use these songs to communicate with other humpbacks. · A muskrat can stay underwater for about 15 minutes. It can swim the length of a football field before it comes up for air. · Bats eat while they are flying. A bat can eat up to 1000 insects in a night.
