Happy cats. Happy dogs. Thanks to science.

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. Here at Companion Animal Psychology, she's been inspiring people to have happier pets since 2012.

This page contains affiliate links which means I may earn a commission on qualifying purchases at no cost to you.

Zazie Todd PhD with her dog Bodger and her two books Wag and Purr

In Canada, signed copies of Purr are available from Black Bond Books via this link: https://blackbondbooks.com/purr and Wag with this link: https://blackbondbooks.com/wag

“A digestible mixture of science summaries, expert opinions, anecdotes about Zazie’s cats, and practical tips. Purr is definitely a book your cat would want you to read!"—Dr. Sarah Ellis, co-author of The Trainable Cat and Head of Cat Advocacy, International Cat Care
"Zazie Todd, a psychologist and dog trainer, gives us the latest research and insights that can help you better understand your dog. Practical, compassionate, thorough — and based on science rather than wishful thinking — Wag is also a gift you should give to yourself and the dog or dogs in your life. I loved it!”—Cat Warren, NYT-Bestselling author of What the Dog Knows


New and Trending

Bad dog, bad welfare? (Psychology Today)

Select Media

The British declared wellbeing as a right for all animals, Dog Talk (and Kitties Too!), 27 Feb 2023

The Five Freedoms, Cat Chat, 22 Feb 2023

Should I get a second dog?, The Farmer's Dog Digest, 18  Feb 2023

How we know your dog loves you, Radio New Zealand Sunday Morning, 13 Nov 2022

North by Northwest with Sheryl MacKay, CBC Radio, 5 Nov 2022 (interview starts around the 53 min mark). 

How to Make Your Cat Happy, Radio New Zealand Sunday Morning, 18 September 2022

Purring is a love language no human can speak, The Atlantic, 7 September 2022

The science of making your cat happy, Breakfast Television, 9 May 2022

The science of making your cat happy, CTV Your Morning, 5 May 2022

Support Companion Animal Psychology

Here at Companion Animal Psychology, I love to help people have happier cats and dogs (according to science). It's open to everyone--and supported by readers like you.

If you'd like to support Companion Animal Psychology, you can buy me a coffee on Ko-fi via credit, debit, or Paypal.


Praise for Companion Animal Psychology

"Companion Animal Psychology is, bar none, the single best resource for accessible information on dog and cat behavior."--Jean Donaldson, Academy for Dog Trainers.

"My favourite animal-related blog"--Patricia McConnell, PhD

"For your average pet lover, it can be hard to figure out the best way to make their animals’ lives better. Enter Companion Animal Psychology, a blog packed with research-based information on how pets think."--Erin Blakemore, Washington Post.

The Companion Animal Psychology logo

This page contains affiliate links which means I may earn a commission on qualifying purchases at no cost to you. As an Amazon Associate I earn from qualifying purchases.

Support Companion Animal Psychology with a donation via debit, credit, or Paypal