Bats sleep 18-20 hours per day.
5
The Basenji dog is the only dog that is not able to bark.
4
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Squirrels forget where they hide about half of their nuts.
698
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
Rattlesnake mating sessions have been known to last more than 22 hours.
232