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.

The TV show Doctor Who, when it was popular, had an audience of 110 million people.

The average cat can jump 5 times as high as its tail is long.

AMAZING FACTS