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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Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
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There's a rare breed of pig that looks like a sheep.
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A group of pugs is called a grumble.
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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 seahorse is the only fish to have a neck.
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