Rat Terrier puppies and dogs in Boulder, Colorado

Meet Penguin Male DOB: May 19, 2023 Weight: 22 lbs Breed: Jack Russell Terrier / Rat Terrier Mix Neutered (Fixed) Vaccinated Microchipped Healthy & Adoption-Ready Personality, Breed Info & Expectations Penguin is an outgoing, friendly little guy with a fun personality and a big zest for life packed into a small body. He loves being around people, enjoys interaction, and carries himself with the confident, entertaining energy Terrier lovers know and adore. He has matured beautifully into a lively companion who still enjoys playtime and activity while also loving affection and companionship from his humans. Penguin thrives when he feels included and part of the action. As a Jack Russell Terrier / Rat Terrier mix, Penguin may show traits such as intelligence, curiosity, alertness, and playful energy. Both breeds are known for being highly engaging, clever little dogs who enjoy staying mentally and physically active. Penguin would thrive in a home that can provide: Daily walks and playtime Mental stimulation and engagement Structure and consistency Companionship and inclusion as part of the family He would make a wonderful companion for someone looking for a social, entertaining, and affectionate dog with lots of personality. Training, Adjustment & What to Expect Many rescue dogs come from very different backgrounds. Some may have previously lived in homes, while others may have come from the streets, overcrowded shelters, neglect situations, or environments where they had little structure or guidance. Because of this, most rescue dogs arrive with only basic training at best, and some may have had no formal training at all. Even dogs who appear well-behaved in foster care or at the rescue are still adjusting and learning. The rescue environment itself also does not always allow for extensive one-on-one training. While we work hard to provide safety, structure, socialization, and basic guidance, adopters should be prepared to continue training and support after adoption. Penguin will benefit from: Positive reinforcement training Structure and consistency Continued socialization and engagement Mental stimulation and routine Patience during adjustment periods Please remember the 3-3-3 Rule: 3 days to decompress 3 weeks to learn your routine 3 months to fully feel at home With patience, stability, and commitment, rescue dogs often blossom into deeply loyal lifelong companions. Owner Responsibilities & Veterinary Care Owning a dog is a lifelong commitment that includes daily exercise, companionship, routine veterinary care, training, mental stimulation, and financial responsibility. Penguin will need: Daily walks, exercise, and interaction Continued training and engagement Routine wellness exams and preventative veterinary care A safe, stable, indoor living environment Consistent veterinary care, proper nutrition, preventative care, and emotional stability are all essential to helping him live a healthy and happy life. Penguin is an indoor family dog and is not to be chained or left outside. Adoption Information If you are interested in adopting this wonderful dog, please complete an adoption application by visiting: https://www.ozzieandfriendsrescue.org/adoptions Thank you for considering adoption through Ozzie and Friends Rescue, a Los Angeles–based rescue dedicated to giving dogs a second chance at a loving home. Our team carefully reviews every application and will reach out to help match you with the right dog for your home and lifestyle. You may be seeing our dogs listed in multiple states because we work hard to give as many of our rescue dogs as possible the opportunity to be seen by loving families beyond our local area. While we are based in Los Angeles, we expand our reach throughout the Western United States and the Midwest to help more dogs find the forever homes they deserve. We understand that transportation and adoption fees can sometimes feel like a big commitment, and we truly appreciate every person who considers opening their heart and home to a rescue dog. Our goal is simply to give these dogs the best chance at being seen, adopted, and loved. Ozzie and Friends Rescue coordinates safe and reliable transport so adopted dogs can travel to their new homes across the Western United States, Canada, and the Midwest. We can’t wait to help you meet your next fur-ever best friend.November 9, 2026, 3:35 pm

I have had Olaf since he was a puppy! It actually breaks my heart to write this request as he is such an amazing (but quirky) little guy. Olaf is a 12 year old rat terrier with a beautiful Merle coat and big personality! He loves to cuddle, be around his people, and sunbathe! He is friendly with cats but is a bit dog aggressive / territorial. He loves people but gets spooked easily/ does not like to be picked up. He does love to hop up and sit in your lap (just on his own terms). Unfortunately, Olaf bit our toddler this summer and we just welcomed a new baby into our home. We have had to keep him sectioned off from our toddler since July and now with our baby girl, it’s just too much. We want him to have a fun and free few years of his life left. We can’t offer him what he deserves :( I think he would be such a great companion for a home without dogs / kids! He is an easy keep and does well being left home alone!

Meet our adorable rat terrier puppy Rosa. She is around 5lbs and 5 months old.  Here is a video of Rosa and her sister Osoro:https://youtu.be/Felu2535QNA We don't know much about the background of Rosa or her sister Osoro. We do believe they are related even though they look quite different to each other. They are typical friendly and playful puppies, relatively confident around dogs of all sizes. They are a little vocal, especially around new dogs. They are comfortable being handled and are excited to see their foster parent however, they can be very shy and usually avoid being handled as best they can. The foster usually corrals them and scoops them up to crate them overnight. They sleep quietly through the night in their crate without any accidents. Their foster lets them out in the morning and they run riot in the backyard all day. With a little bit of human attention, they should quickly grow in confidence and seek out human affection. She is vaccinated, spayed and microchipped.  Rosa knows just how miraculous a turn her life has taken when she was picked out by Havok's Wolfpack and she is determined to live her new life to the fullest, hopefully, with you. Her adoption fee is $600. To submit an adoption application for her, head over to our website (please ignore the error code, the form will load correctly):http://www.havokswolfpack.com/adopt/ or you can use this link https://petstablished.com/adoption_form/18644/generic If your application is approved, we will contact you promptly. ##2867246##

Carl Junior is currently located at our Everyday Adoption Center in Westminster (10460 Town Center Dr, Westminster, CO, 80021) and can be visited from 10am-6pm Sat/Sun and 12pm-7pm Mon-Fri! Email our Everyday Adoption Center team at EAC@savinganimalstoday.org for more information! Meet Carl Junior! Carl Junior is a dashing young man ready to make moves! Moving mountains (taking his toys out of the toy bin), running a marathon (zoomies in the back yard), and of course moving into your home! He is looking for someone who will listen to him, take long walks, and stare lovingly into his eyes. Think you could be a match for Carl? Come and meet him today! Not to be confused with the fast food chain Carl's Jr. as our friend here is 100% dog and 0% beef! (at least 2% beef in his stomach though.)

Meet Penguin Male DOB: May 19, 2023 Weight: 22 lbs Breed: Jack Russell Terrier / Rat Terrier Mix Neutered (Fixed) Vaccinated Microchipped Healthy & Adoption-Ready Personality, Breed Info & Expectations Penguin is an outgoing, friendly little guy with a fun personality and a big zest for life packed into a small body. He loves being around people, enjoys interaction, and carries himself with the confident, entertaining energy Terrier lovers know and adore. He has matured beautifully into a lively companion who still enjoys playtime and activity while also loving affection and companionship from his humans. Penguin thrives when he feels included and part of the action. As a Jack Russell Terrier / Rat Terrier mix, Penguin may show traits such as intelligence, curiosity, alertness, and playful energy. Both breeds are known for being highly engaging, clever little dogs who enjoy staying mentally and physically active. Penguin would thrive in a home that can provide: Daily walks and playtime Mental stimulation and engagement Structure and consistency Companionship and inclusion as part of the family He would make a wonderful companion for someone looking for a social, entertaining, and affectionate dog with lots of personality. Training, Adjustment & What to Expect Many rescue dogs come from very different backgrounds. Some may have previously lived in homes, while others may have come from the streets, overcrowded shelters, neglect situations, or environments where they had little structure or guidance. Because of this, most rescue dogs arrive with only basic training at best, and some may have had no formal training at all. Even dogs who appear well-behaved in foster care or at the rescue are still adjusting and learning. The rescue environment itself also does not always allow for extensive one-on-one training. While we work hard to provide safety, structure, socialization, and basic guidance, adopters should be prepared to continue training and support after adoption. Penguin will benefit from: Positive reinforcement training Structure and consistency Continued socialization and engagement Mental stimulation and routine Patience during adjustment periods Please remember the 3-3-3 Rule: 3 days to decompress 3 weeks to learn your routine 3 months to fully feel at home With patience, stability, and commitment, rescue dogs often blossom into deeply loyal lifelong companions. Owner Responsibilities & Veterinary Care Owning a dog is a lifelong commitment that includes daily exercise, companionship, routine veterinary care, training, mental stimulation, and financial responsibility. Penguin will need: Daily walks, exercise, and interaction Continued training and engagement Routine wellness exams and preventative veterinary care A safe, stable, indoor living environment Consistent veterinary care, proper nutrition, preventative care, and emotional stability are all essential to helping him live a healthy and happy life. Penguin is an indoor family dog and is not to be chained or left outside. Adoption Information If you are interested in adopting this wonderful dog, please complete an adoption application by visiting: https://www.ozzieandfriendsrescue.org/adoptions Thank you for considering adoption through Ozzie and Friends Rescue, a Los Angeles–based rescue dedicated to giving dogs a second chance at a loving home. Our team carefully reviews every application and will reach out to help match you with the right dog for your home and lifestyle. You may be seeing our dogs listed in multiple states because we work hard to give as many of our rescue dogs as possible the opportunity to be seen by loving families beyond our local area. While we are based in Los Angeles, we expand our reach throughout the Western United States and the Midwest to help more dogs find the forever homes they deserve. We understand that transportation and adoption fees can sometimes feel like a big commitment, and we truly appreciate every person who considers opening their heart and home to a rescue dog. Our goal is simply to give these dogs the best chance at being seen, adopted, and loved. Ozzie and Friends Rescue coordinates safe and reliable transport so adopted dogs can travel to their new homes across the Western United States, Canada, and the Midwest. We can’t wait to help you meet your next fur-ever best friend.November 9, 2026, 3:35 pm

Bunnie is a smart, energetic, and silly 13 month old puppy. I adopted her from Animal Friends Alliance at 10 months old, and, though I love her, it's become clear that my home isn't the best fit. She and our cat have not adjusted to each other well, and my work schedule makes providing her with enough exercise and stimulation difficult. She knows basic commands and a few tricks, and she is very food motivated. Bunnie loves other dogs, particularly larger ones, but she can be a bit of a bully with smaller and more nervous dogs. She loves to play with toys and chew on bully sticks, and she adores people. Running is her favorite activity, and she's fast! When she's calm, she's very cuddly.Bunnie would do best in a home without cats, since she chases them, and she barks at children. She is about 90% on housebreaking. She gets mouthy when excited.Bunnie would be a great running/hiking buddy, and she'd do well with a doggy friend. I'd be happy to have her food and toys go with her

We would like to introduce Buddy the Elf or Buddy or Elf! He is a 17lb, neutered male Jack Russell Terrier mix who is an absolute sweetheart! ❤️ Buddy the Elf is very CHILL and great on a leash, loves to play, and is wonderful with people of all ages. He also does well with other dogs. He has a fun, playful personality and would make a wonderful companion for an active family. He is house-trained and sleeps quietly in his kennel all night. He enjoys a midafternoon nap in his kennel. He is learning basic commands and is food motivated. He enjoys playing fetch. He carries his squeaky toys around but doesn't destroy them. He can be trusted to explore the house without chewing or marking. He doesn't have any separation anxiety and is independent. Did we mention his adorable freckles on his nose?

Meet Penguin Male DOB: May 19, 2023 Weight: 22 lbs Breed: Jack Russell Terrier / Rat Terrier Mix Neutered (Fixed) Vaccinated Microchipped Healthy & Adoption-Ready Personality, Breed Info & Expectations Penguin is an outgoing, friendly little guy with a fun personality and a big zest for life packed into a small body. He loves being around people, enjoys interaction, and carries himself with the confident, entertaining energy Terrier lovers know and adore. He has matured beautifully into a lively companion who still enjoys playtime and activity while also loving affection and companionship from his humans. Penguin thrives when he feels included and part of the action. As a Jack Russell Terrier / Rat Terrier mix, Penguin may show traits such as intelligence, curiosity, alertness, and playful energy. Both breeds are known for being highly engaging, clever little dogs who enjoy staying mentally and physically active. Penguin would thrive in a home that can provide: Daily walks and playtime Mental stimulation and engagement Structure and consistency Companionship and inclusion as part of the family He would make a wonderful companion for someone looking for a social, entertaining, and affectionate dog with lots of personality. Training, Adjustment & What to Expect Many rescue dogs come from very different backgrounds. Some may have previously lived in homes, while others may have come from the streets, overcrowded shelters, neglect situations, or environments where they had little structure or guidance. Because of this, most rescue dogs arrive with only basic training at best, and some may have had no formal training at all. Even dogs who appear well-behaved in foster care or at the rescue are still adjusting and learning. The rescue environment itself also does not always allow for extensive one-on-one training. While we work hard to provide safety, structure, socialization, and basic guidance, adopters should be prepared to continue training and support after adoption. Penguin will benefit from: Positive reinforcement training Structure and consistency Continued socialization and engagement Mental stimulation and routine Patience during adjustment periods Please remember the 3-3-3 Rule: 3 days to decompress 3 weeks to learn your routine 3 months to fully feel at home With patience, stability, and commitment, rescue dogs often blossom into deeply loyal lifelong companions. Owner Responsibilities & Veterinary Care Owning a dog is a lifelong commitment that includes daily exercise, companionship, routine veterinary care, training, mental stimulation, and financial responsibility. Penguin will need: Daily walks, exercise, and interaction Continued training and engagement Routine wellness exams and preventative veterinary care A safe, stable, indoor living environment Consistent veterinary care, proper nutrition, preventative care, and emotional stability are all essential to helping him live a healthy and happy life. Penguin is an indoor family dog and is not to be chained or left outside. Adoption Information If you are interested in adopting this wonderful dog, please complete an adoption application by visiting: https://www.ozzieandfriendsrescue.org/adoptions Thank you for considering adoption through Ozzie and Friends Rescue, a Los Angeles–based rescue dedicated to giving dogs a second chance at a loving home. Our team carefully reviews every application and will reach out to help match you with the right dog for your home and lifestyle. You may be seeing our dogs listed in multiple states because we work hard to give as many of our rescue dogs as possible the opportunity to be seen by loving families beyond our local area. While we are based in Los Angeles, we expand our reach throughout the Western United States and the Midwest to help more dogs find the forever homes they deserve. We understand that transportation and adoption fees can sometimes feel like a big commitment, and we truly appreciate every person who considers opening their heart and home to a rescue dog. Our goal is simply to give these dogs the best chance at being seen, adopted, and loved. Ozzie and Friends Rescue coordinates safe and reliable transport so adopted dogs can travel to their new homes across the Western United States, Canada, and the Midwest. We can’t wait to help you meet your next fur-ever best friend.November 9, 2026, 3:35 pm

  Meet Mickey A Little Dog With a Big Personality and a Heart Full of Happiness! Breed: Jack Russell Terrier Mix Gender: Male | Age: 1 Year DOB: October 23, 2025 (Estimated) Weight: 9 lbs Good With: Dogs ✔️ | Kids ✔️ | Cats: Unknown Personality: Happy | Playful | Energetic | Fun-Loving | Friendly Medical: Neutered ✔️ | Vaccinations Up to Date ✔️ | Microchip: Not Provided Location: Los Angeles, California Transportation: Safe transportation coordinated for approved adopters throughout the United States. ❤️ Personality & Breed Information Meet Mickey, an adorable 1-year-old Jack Russell Terrier mix weighing just 9 pounds! This handsome little guy may be small in size, but he has a big personality and a wonderful enthusiasm for life. Mickey is a happy, playful boy who loves having fun and is ready to bring laughter, excitement, and companionship into someone's home. With his cheerful personality and youthful energy, he's a wonderful candidate for a family looking for a small dog with plenty of spirit. At just one year old, Mickey is entering young adulthood. He's moved beyond the earliest stages of puppyhood but still has lots of energy, curiosity, and opportunities to learn new things. Whether he's enjoying playtime, exploring his surroundings, or spending time with his favorite people, Mickey has the potential to become a wonderful lifelong companion. About the Jack Russell Terrier Breed Jack Russell Terriers are known for their intelligence, athleticism, curiosity, confidence, and lively personalities. Originally developed as working terriers, these small dogs were bred to be energetic, determined, and quick-thinking. As a Jack Russell Terrier mix, Mickey may share several typical breed characteristics: Playful and energetic: Jack Russells often enjoy interactive games, regular walks, and opportunities to explore. Intelligent and curious: They are often quick learners who benefit from positive reinforcement and mental stimulation. Affectionate and loyal: Many develop strong bonds with their families and enjoy spending time with their favorite people. Confident and spirited: Despite their small size, Jack Russells often have bold personalities and plenty of enthusiasm. Active and athletic: They typically enjoy activities that keep both their minds and bodies engaged. Mickey's future family should understand that small dogs still need regular exercise, training, and mental enrichment. Although he weighs only 9 pounds, Mickey may have the energy and determination commonly associated with terrier breeds. His ideal home will provide daily walks, interactive playtime, positive training, and plenty of companionship. Mickey is proof that happiness doesn't come in one size. Sometimes, it comes in a tiny 9-pound package with a big personality! Training, Adjustment & What to Expect At one year old, Mickey is a young adult who will benefit from continued training, positive socialization, and a consistent daily routine. Rescue dogs may arrive with basic training at best, so adopters should be prepared to continue working on house training if needed, leash manners, basic obedience, recall, appropriate chewing, calm greetings, and household boundaries. Because Jack Russell Terriers are intelligent and can be independent thinkers, Mickey will benefit from positive reinforcement, patience, consistency, and short, engaging training sessions. Interactive toys, puzzle feeders, scent games, and supervised outdoor activities can help keep his curious mind occupied. Exercise & Daily Activities Mickey may enjoy activities such as: Daily walks and opportunities to explore new environments. Interactive games and supervised playtime. Positive reinforcement training with treats and praise. Puzzle toys and enrichment activities. Spending quality time with his family. Despite his small size, Mickey should not be expected to spend all day indoors without exercise or stimulation. A balanced routine that includes physical activity, mental enrichment, and relaxation will help him thrive. Living With Other Pets Mickey is considered suitable for homes with other dogs and children, with appropriate introductions and supervision. His compatibility with cats has not yet been confirmed. Jack Russell Terriers can have strong chasing instincts because of their working-dog background, so introductions to cats and other small animals should be approached carefully. Because Mickey weighs only 9 pounds, interactions with larger dogs and young children should also be supervised to help prevent accidental injury. The 3-3-3 Rule Every rescue dog needs time to adjust to a new environment. 3 Days: Time to decompress, observe his surroundings, and begin feeling safe. 3 Weeks: Time to understand his new household routine, build confidence, and become more comfortable. 3 Months: Time to strengthen his bond with his family, settle into daily life, and begin feeling truly at home. These are general guidelines rather than strict deadlines. Every dog adjusts at their own pace. Mickey deserves a family who will provide patience, encouragement, structure, and reassurance as he settles into his forever home. Owner Responsibilities & Veterinary Care Mickey is neutered and up to date on his vaccinations, making him ready to begin the next chapter of his life with a loving family. His future adopters should continue providing regular veterinary care and preventive healthcare throughout his life. As a small Jack Russell Terrier mix, Mickey will need: High-quality nutrition appropriate for his age, size, and activity level. Regular veterinary examinations to monitor his overall health. Daily exercise and interactive playtime to support his physical and mental well-being. Dental care, which is particularly important for small dogs that may be more susceptible to dental disease. Routine grooming and nail maintenance for his comfort and health. Consistent flea, tick, and parasite prevention as recommended by his veterinarian. Continued training and mental enrichment to keep him happy and engaged. A safe, secure home environment with appropriate supervision during outdoor activities. Important Small-Breed Considerations Because Mickey weighs only 9 pounds, his family should be mindful of his small size. Small dogs can be vulnerable to accidental injuries from falls, rough handling, or interactions with much larger animals. His future family should also monitor his weight carefully, as even small amounts of excess weight can affect a little dog's joints and overall health. Jack Russell mixes may be prone to certain orthopedic concerns, including kneecap problems such as patellar luxation. Regular veterinary examinations can help identify any potential issues early. Adopting Mickey is a lifelong commitment that includes providing proper nutrition, veterinary care, training, exercise, safety, companionship, and unconditional love. Adoption Information If you are interested in adopting Mickey, please complete an adoption application: https://www.ozzieandfriendsrescue.org/adoptions Ozzie and Friends Rescue is a Los Angeles-based nonprofit dedicated to rescuing dogs in need and helping them find safe, loving forever homes. While based in Southern California, we coordinate safe transportation for approved adopters throughout the United States. Our goal is to give every dog the best possible chance of finding the right family and a home where they will be loved and cared for throughout their lives. Adopting Mickey means committing to his continued training, veterinary care, exercise, safety, companionship, and lifelong happiness. Mickey may weigh just 9 pounds, but he has a personality big enough to fill an entire home with happiness! This playful, cheerful little boy is ready for a lifetime of adventures, fun-filled afternoons, and wonderful memories with a family of his own. Whether he's exploring the world on his tiny paws or simply enjoying being part of the family, Mickey is ready to bring joy into someone's life. All he needs now is a loving home where he'll be cherished, protected, and adored forever. Could Mickey be the little best friend you've been waiting for? November 9, 2026, 3:35 pm