Oak trees do not produce acorns until they are fifty years of age or older.

Giraffes often sleep for only 20 minutes in any 24 hours. They may sleep up to 2 hours (in spurts – not all at once), but this is rare. They never lie down.

Ironically, when doctors in Los Angeles, California went on strike in 1976, the daily number of deaths in the city dropped 18%.

AMAZING FACTS