Young male gorillas usually leave their family group when they are about 11 years old and have their own family group by the age of 15 years old. Young female gorillas join a new group at about 8 years old.

There was a post office on the Russian space station Mir. Visiting cosmonauts would use unique postal "markers" to stamp envelopes and other items as having flown aboard the Mir space station.

Cats sleep 16 to 18 hours per day.

AMAZING FACTS