Lobsters have blue blood.
476
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Only 3% of bird species have penises.
0
Dolphins have names for one another.
18
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