Greyhounds can run as fast as 45 mph and are the fastest canines on the planet
Female dogs are twice as likely to bite someone than male dogs.
Studies indicate that petting your dog can lower your blood pressure.
Dogs are not colorblind. They are able to detect color in their vision, just not as vividly as humans.
It is illegal to keep a dog as a pet in Iceland.
Cats came to the Americas from Europe as pest controllers in the 1750s.
Cats sleep 16 hours on any given day.
A fingerprint is to a human as a nose is to a cat.
Most cats do not have eyelashes.
Cats have five toes on their front paws and four on each back paw.
A group of kittens is called a “kindle”, and “clowder” is a term that refers to a group of adult cats.
A cat’s meow is usually directed at a human, but cats will hiss, purr and spit when communicating with other cats.