Management Team

Nancy Murphy / Owner

Nancy is a background checked and certified professional pet sitter through Pet Sitters International. She has also obtained certification in animal safety, first aid and CPR through Pet Tech.

Experienced with administering medications, sub-cutaneous fluids and insulin shots for both cats and dogs, pet parents can rest easy that all of the right things will be done at all the right times. The former founder of Bark at the World, Nancy KNOWS what your animal wants and what you need to feel comfortable leaving your pet for the day, overnight, week or more!

Skilled and knowledgeable in “kind and gentle” praise-based obedience training, socialization, animal nutrition, and rescue dog rehabilitation, Nancy’s Wheaten Terriers have obtained their Canine Good Citizen Certification and have been registered Therapy Dogs.

“We strive to be the person our dogs think we are!”

Mike Murphy / Owner

Mike Murphy is COO and Co-Owner of A Dog’s World. He has years of extensive experience and training in pet care and animal behavior. A lifelong pet owner and trained therapy dog handler, two of his dogs are certified therapy canines.

Michael has experience in administering medications, including subcutaneous fluids and insulin shots in both cats and dogs. He has also raised and cared for two parrots and is very comfortable in dealing with the care and attention necessary with handling birds. He has worked as a foster parent with a dog rescue for several years and is most known for working with rescue dogs that have fear-based issues with humans.

“I have a nickname of ‘The Dog Magnet’. I don’t know why every dog seems to be drawn to me…but I’m glad they are!”

Michael O’Brien / Manager & Trainer

A fifth-generation Colorado native, Michael has been fascinated by the animal kingdom and animal behavior over his entire life. From working with the calves on his uncle’s farm during the summers, to taming wild squirrels and blue jays in his back yard as a child, he is what people might refer to as a true “nature boy.”  But it took a special dog to show him where he was needed the most, helping dogs and their owners communicate better so we can start slowing down the number of dogs that are put to sleep due to bad behavior issues (THE #1 KILLER OF DOGS).

Michael O’Brien is a graduate of Animal Behavior College where he earned his certification as an ABC-DT. Animal Behavior College is approved by the Bureau for Private Postsecondary and Vocational Education and is an internationally recognized school. His certification has provided him with a formal education in canine obedience training and understanding of behavior and its motives.   His experience provides the skills to effectively and humanely train your dog while keeping alive the spark that makes your dog special to you.

Over the years he has helped keep dogs in homes by working with numerous rescue groups like: Doggy Dog World, Hope For Animals, and Clear Creek/ Gilpen County Animal shelter for 8 years as their Canine Behavior Specialist/Dog Trainer. He has learned that not all dogs learn the same way, and not every dog owner wants their dog trained the same way. With that in mind, Michael has found that flexibility is the key that helps bridge the communication gap, thus enabling dog and owner to better understand one another. 

Daycare Hours

Mon – Fri:  6am – 9pm
Saturday:  6am – 9pm
Sunday:  6am – 9pm

Boarding Hours

Available 24 / 7 / 365

In-Home Services

Available 24 / 7 / 365

Grooming Hours

Monday:  CLOSED
Tues – Sat: 8am – 7pm
Sunday: CLOSED

Contact Us

6350 N Rampart Range Rd
Littleton, CO 80125
720.699.BARK (2275)