Companionship

- Domestication, How Wolf Became Dog

scientificamerican.com

Basic Anatomy

- Video on dew claws - @quartermoongoldens1

- Anatomy of the Dog (book), Aaron Horowitz and Rolf Berg

5th edition.

Ears, Eyes and Nose

- firstvet.com, ears and hearing

- livescience.com, eyes

- allaboutvision.com, eyes

- dailypaws.com, eyes

- BBC Science Focus, eyes

- PBS Nova, smell

- Dog Discoveries - Noses

The Mouth - Book - Anatomy of the Dog (Fifth revised edition)

- Advanced Animal Care Clinic

- Dog Mouth Anatomy Petlabco.com

Structure

Reproduction - Merck Veterinary Manual

- Cornell Richard P. Riney Canine Health Center

- Barkandwhiskers.com - The Truth about Spaying and Neutering

by Dr. Karen Becker

General Maintenance

Education

Communication - firstvet.com, body language

- Psycology Today - Tails

Enrichment

Sleep

Longevity - Live Science

- Canine Journal

- Steve’s real food

- Animal Wellness magazine

- Psychology Today

Definitions - Merriam-Webster

- Dictionary.com

Did you know? - Cambridge University Press - Odor change with emotional

change.