Spiked and studded dog-collars derive from the days of the Ancient Greeks, who would give their sheep-dogs sharply spiked collars to protect their necks from wolves whilst they watched over a Sheppard's flock at night.

Cats have powerful night vision, allowing them to see at light levels six times lower than what a human needs in order to see.

Levan, which is located in Utah, got its name from "navel" which is levan spelt backwards. It was named this because it is in the center of Utah.

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