Bats sleep 18-20 hours per day.
5
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Two dogs were among the Titanic survivors.
262
Alligators can live up to 100 years.
337
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20