When cats are happy, they may squeeze their eyes shut.
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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
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George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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