Dogs curl up to keep themselves warm and protect vital organs.

Dogs curl up to keep themselves warm and protect vital organs

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Sound frequency is measured in Hertz (Hz). The higher the Hertz, the

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Dogs have four toes on their hind feet, and five on their front feet

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Cats prefer to remain non-confrontational. They will not fight to show

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Humans have kept dogs as pets for over 12,000 years

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Cats have the largest eyes relative to their head size of any mammal