A domestic cat can sprint at about 31 miles per hour.
274
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Dolphins have names for one another.
18
Cats recognise the voice of their owner, but never evolved to care.
22
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
The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12
Rattlesnake mating sessions have been known to last more than 22 hours.
232