Cats sleep for 70% of their lives.
8
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
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
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
11
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11