A woman boops her dog's nose

What's in a boop?

We’re glad you asked. There’s a whole lot behind this tiny moment. Trust, appreciation and hearts full of love go into each boop you share with your pet. And thanks to the staff, volunteers, fosters, adopters and donors to the APA Adoption Center, there are a lot of boops happening all over the area—and beyond.

For 100 years, we’ve been helping people and pets bring out the best in each other. If you’re keeping track, that equates to roughly 100 bazillion boops.

And we’re just getting started. To those who appreciate what goes into each boop given and received, we extend a nosefelt invitation to celebrate with us. And if you’re so inclined, please donate to keep the boops booping.

We're Celebrating All Year Long

Mark these dates on your calendar, and check back for complete details:

Mar-Nov: Walk of the Century

To celebrate the APA’s 100 years, we’re asking you to go 100 miles for pets in need. Get started at our Walk of the Century registration page!

5/4: Boop Brunch

Join us for brunch and hear from a national expert, Dr. Kevin Morris, the American Humane Endowed Chair and associate professor within the Institute for Human-Animal Connection at Denver University, to learn how pets and their people are working together to make the world kinder and more joyful as well as how our community is made better through the love of a pet. Purchase tickets here.

9/24: A Birthday Pawty

What’s a milestone birthday without a party? Join us for a VIP celebration on September 24th.

9/25: Canine Carnival

The APA’s signature event will be bigger, better, and even more fun for you and your furry friends this year. You won’t want to miss it, so add this to your calendar for September 25th.

100 Years of Connecting

Pack of animals walking

Join the Walk of the Century

We’re looking for 1,000 people to walk 100 miles each this year—all to benefit the APA Adoption Center. Raise money, win swag and help bring pets and people together. It’s an awesome way to get involved and celebrate the 100th birthday of the APA!


Click the link below to get you and your furry, scaly or feathered friend started.


Do it on your schedule, at your pace. You can even track your progress to share with other walkers.


As you walk, family and friends can support you by donating to the APA.

Support Our Pet Project

We’re updating our Adoption Center and welcome your support. Help us provide better and more efficient care to more animals by giving to Our Pet Project. Learn more here.

Thank you to our centennial sponsors

Our sponsors help underwrite the cost of events so that all proceeds go directly to our mission. Interested in sponsoring our celebration?