Sheep, goats, octopuses, and toads have rectangular pupils.
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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.
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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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In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
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