Dog Guide

Choosing the Right Dog
Dog Guide »

Body Basics

Why do dogs wag their tail? What makes a dog's nose wet? Why do they pant? Learn about the basic anatomy of all dogs.

Why do dogs have a third eyelid?
If you can actually see eyelid number three, that could be a clear sign that something's wrong.

Do dogs know when they are wagging their tails?
Wagging their tails is one of the most visible ways canines use to communicate.

Can dogs see color?
Dogs only see two colors, and they are not black and white.

Can dogs see in the dark?
Do dogs see better than humans? They see differently, and in some instances, better.

How is a dog's sense of smell so incredible?
Dogs rule. Or, at least, they do when it comes to their sense of smell.

What's a dog's normal body temperature?
Much like humans, a dog's temperature may rise or drop for various reasons.
Coat
Long hair, short hair or fur, a dog's coat is one of it's most identifiable characteristics.

Ears and Hearing
The shape of a dog's ears determines how it uses its sense of hearing.

Smell
Smelling is the most highly developed of all a dog's senses.

Skulls
Dogs have been bred to have specific head shapes.

Teeth
There's a lot more in a dog's mouth than its canine teeth!

Tongue
A dog's tongue has many functions.

How Stuff Works

Visit our friends at HowStuffWorks.com to learn even more about dog breeds and how to choose the perfect pup for you and your family. Get started!