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.

Irish Wolfhound dogs have a short lifespan and live about 7-8 years.

The crack of a whip is actually a tiny sonic boom, since the tip breaks the sound barrier.

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