The cat brain weighs about 30g.
167
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
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
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10
A 42-foot sperm whale has about 7 tons of oil in it.
209