Approximately 1,000,000 dogs in the U.S. are named as the heirs of their owners' wills.

The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear. Any cup-shaped object placed over the ear produces the same effect.

Lake Nicaragua boasts the only fresh-water sharks in the entire world.

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