An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
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
Cats recognise the voice of their owner, but never evolved to care.
22
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Whales and dolphins can't taste anything other than salt.
11