There are no 100% hypoallergenic dogs. All have at least some hair which can attract dander/allergens.

Hounds who hunt by scent include the Basset, Beagle, Bloodhound, English and American Foxhounds.

Most dogs have a double coat of hair. The undercoat provides insulation. The topcoat is guard hair.

Puppies begin getting their teeth when they are approximately 3 weeks old, and they are sharp.

Dogs are not colorblind. They may not see colors as vividly as humans do, however.

Puppies begin getting adult teeth when they are between 4 and 7 months old.

Some think the Shetland Sheepdog ("Sheltie") is a miniature Collie. It is not.

The Labrador Retriever was called the St. John's Newfoundland originally.

The Chow Chow has a black tongue. Others generally have a pink tongue.

Boxers get their name from striking with their front paws when fighting.

The heaviest dog breeds are the Saint Bernard and the Mastiff.

Though known for yodeling, the Basenji is considered barkless.

Dalmations are born white and gain spots as they grow older.

Dogs have approximately 100 different facial expressions.

Greyhounds can reach speeds of up to 45 miles per hour.

Of all breeds, Basset Hounds have the longest ears.

The German Shepherd is not related to wolves.

A dog's hearing is much better than his/her sight.

The tallest dog breed is the Irish Wolfhound.

The smallest dog breed is the Chihuahua.

Puppies are born both deaf and blind.

Puppies' eyes open within 10-14 days.

Puppies' hearing begins soon after.

Dogs are either left or right pawed.

Dogs discharge heat by panting.

Dogs sweat from paw pads.