Fellow Creatures: The Life Stages of Dogs

I have a new post over at my Psychology Today blog, Fellow Creatures. It looks at the life stages of dogs, from puppies to seniors, and what we know about dog behaviour during these different periods.

By Zazie Todd, PhD

The life stages of dogs, illustrated by this Toller puppy
Photo: Sonja Kalee/Pixabay


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The 2019 American Animal Hospital Association Canine Life Stage Guidelines divide the dog's lifespan into four stages.  My post focuses on the behavioural aspects of each stage. As well, there are new guidelines from AAHA on the age at which dogs should be spayed/neutered, depending on their size. Learn more in the life stages of dogs.

Zazie Todd, PhD, is the award-winning author of Wag: The Science of Making Your Dog Happy and Purr: The Science of Making Your Cat Happy. She is the creator of the popular blog, Companion Animal Psychology, writes The Pawsitive Post premium newsletter, and also has a column at Psychology Today. Todd lives in Maple Ridge, BC, with her husband, one dog, and two cats. 

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