@dogfacts

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

As an extra, here's a cool little doggo.

Your pup reaches his full size between 12 and 24 months.

As an extra, here's a cool little doggo.

In general, smaller breeds live longer than larger breeds.

As an extra, here's a cool little doggo.

Countess Karlotta Libenstein of Germany left approximately $106 million to her Alsatin, Gunther III, when she died in 1992.

As an extra, here's a cool little doggo.

Humans can detect sounds at 20,000 times per second, while dogs can sense frequencies of 30,000 times per second.

As an extra, here's a cool little doggo.

A dog's sense of smell is so powerful that they can detect changes in a person's emotional state.

As an extra, here's a cool little doggo.

A lost Dachshund was found swallowed whole in the stomach of a giant catfish in Berlin on July 2003.

As an extra, here's a cool little doggo.

Dogs have three eyelids. The third lid, called a nictitating membrane or "haw," keeps the eye lubricated and protected.

As an extra, here's a cool little doggo.

Is it a duck... or a dog? The Newfoundland breed has a water resistant coat and webbed feet. This dog was originally bred to help haul nets for fishermen and rescuing people at risk of drowning.

As an extra, here's a cool little doggo.

About 12 percent of the air that a dog breathes goes into a special area in the back of the nose that is dedicated to smelling.

As an extra, here's a cool little doggo.

There are almost 5 million dog bites per year; children are the main victims. Dog bites cause losses of over $1 billion a year.

As an extra, here's a cool little doggo.

The Beagle came into prominence in the 1300s and 1400s during the days of King Henry VII of England. Elizabeth I was fond of Pocket Beagles, which were only 9" high.

As an extra, here's a cool little doggo.

Humans generally see better than dogs, but dogs see much better when there is low-light.

As an extra, here's a cool little doggo.

The tallest living dog is a Great Dane named Zeus, who measured 44 inches at the shoulder.

As an extra, here's a cool little doggo.

Stray dogs in Moscow have learned to ride the subway to find food.

As an extra, here's a cool little doggo.