Lessons in the guide use the programs as a starting point for discussions about the domestication of dogs, selective breeding, and the ways in which humans and dogs work and live together.

Download wallpaper from NATURE's "Dogs That Changed the World."

Students will use critical thinking to determine which breed of dog would best fit their personality and living situation, then write a short story from a dog's perspective.

See the production credits for NATURE's "Underdogs."

Download the working dog wallpaper for your desktop!

See additional print and web resources about working dogs.

What type of dog makes the best sled dog? What commands does a musher use? What equipment is required to race? In Dogsledding 101, you can learn all this and more.

Thunder was just a puppy when Katrina slammed into New Orleans. By the time Thunder's owner returned, it was nearly too late.

When Hurricane Katrina struck New Orleans, more than 250,000 pets were left stranded by the storm's destruction.

An incisive look at the breeding, behavior, and training of humankind's best friend, including useful pointers on how to avoid mistakes when selecting a puppy.