Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Cats and dogs can hear ultrasound.
350
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
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2