Bats sleep 18-20 hours per day.
5
A lion in the wild usually makes no more than twenty kills a year.
186
Condoms were originally made of animal intestines or linen.
347
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
A group of unicorns is called a blessing.
304