Dogs have been man's pet for over 14,000 years.
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Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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When a male honey bee climaxes during sex, his testicles explode and then he dies.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
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The largest breed of rabbit is the Flemish Giant.
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