President Theodore Roosevelt's Bull Terrier Pete ripped the pants off French Ambassador Jules Jusserand.

The U.S. has the highest dog population in the world.

National Geographic's Dr. Brady Barr measured a dog's average bite force at 320 pounds of pressure per square inch.

In 1860's San Francisco, two stray dogs who were best friends became local celebrities. Their exploits were celebrated in local papers and they were granted immunity from the city's dog catchers.

A Border Collie named Chaser has learned the names of 1,022 toys, and can retrieve each by name.

Plato once said that "a dog has the soul of a philosopher."

Conservationists have used dogs to find bumblebee hives in order to protect endangered species.

It’s not a fever... A dog’s normal temperature is between 101 and 102.5 degrees Fahrenheit. How much do you know about dog health? Take our Doggy First Aid Quiz!

A dog's average body temperature is 101.2 degrees.

Big happy "helicopter" tail wagging is one sign of a really nice dog

At the end of the Beatles’ song "A Day in the Life," a high-pitched dog whistle was recorded by Paul McCartney for his sheepdog.

Dogs can be trained to detect cancer and other diseases in humans.

Dogs don't enjoy being hugged as much as humans and other primates. Canines interpret putting a limb over another animal as a sign of dominance.

Only dogs and humans have prostates.

Some Search and Rescue (SaR) Dogs are trained to sniff out humans 1/4 mile away or more.

Most dogs are capable of understanding up to 250 words and gestures.

The U.S. has the highest dog population in the world. France has the second highest.

The term "dog days of summer" was coined by the ancient Greeks and Romans to describe the hottest days of summer that coincided with the rising of the Dog Star, Sirius.

The phrase "raining cats and dogs" originated in seventeenth-century England. During heavy rainstorms, many homeless animals would drown and float down the streets, giving the appearance that

The Newfoundland has a water-resistant coat and webbed feet.