Dog Care: The 411
Scientific name: Canis familiaris
Size: XS, S, M, L, XL!! Dogs range in size from tiny four-pound tea cup poodles to Irish wolfhounds, the tallest dogs at almost three feet high.
Lifespan: As a rule, smaller dogs tend to live longer than larger ones. A compact Chihuahua can live to be 16, while giant breeds like bull mastiffs usually live to be about eight years old. And somewhere in the middle, the average, All-American mixed-breed pooch has a lifespan of about 12 to 14 years.
Colors/varieties: There are more than 400 different breeds of dogs—spotted Dalmatians, shiny black Labrador retrievers, brindle-coated boxers...to name just a few! But the most popular pooches of all are non-pedigree—that includes shaggy dogs, dogs with hairy ears, dogs with all-white socks, dogs with fluffy tails, and everything in between. You may have heard people call these dogs "mutts," but we prefer one-of-a-kind!
Parents and teachers, visit our main site for more dog care information to share with your students and children.
LEARN MORE
- The 411
- Chow Time!
- Home Sweet Home
- Fun & Games














