The raw material cost of the metals used in a current penny is only about 0.6 cents per coin, according to prices quoted on the London Metal Exchange, and a breakdown of a penny's composition from the mint.
Read by: 274,003 pet lovers. There's no doubt about it: cats sure know how to sleep. Although the amount of time spent napping varies from cat to cat, and depends on the cat's age and personality, felines spend an average of 13 to 16 hours each day curled up in slumber. Only the opossum and the bat sleep more â napping away almost 20 hours a day. Nobody is sure why cats sleep so much.
Kittens are usually considered to be adults when they're around 12 months in age. Although adult cats usually don't sleep as much as kittens, they too can boast pretty impressive shut-eye hours. Normal mature cats that are fit as a fiddle often sleep for between 13 and 18 hours daily.