Bats sleep 18-20 hours per day.
5
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
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The octopus does not have a blind spot.
273
Cats recognise the voice of their owner, but never evolved to care.
22