Wolves live and hunt in groups called a pack. A pack can range from two wolves to as many as 20 wolves depending on such factors as habitat and food supply. Most packs have one breeding pair of wolves, called the alpha pair, who lead the hunt.

Asthma affects one in fifteen children under the age of eighteen.

Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.

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