Meet Mateo
A Sweet Little Terrier Ready to Grow Up With His Forever Family
Breed: Terrier Mix
Gender: Male | Age: 4 Months
DOB: June 12, 2026
Weight: 7.5 kg / 16.5 lbs
Good With: Dogs ✔️ | Kids ✔️ | Cats: Unknown
Personality: Playful | Curious | Lovable | Energetic (Typical Puppy Traits)
Medical: Vaccinations Current | Neuter Status: Unknown | Microchip: Not Provided
Location: Los Angeles, California
Transportation: Safe transportation coordinated for approved adopters throughout the United States.
❤️ Personality & Breed Information
Mateo is an adorable 4-month-old Terrier mix weighing approximately 16.5 pounds. This handsome little boy is still at the beginning of his journey, with so much growing, learning, and discovering ahead of him. He's looking for a loving family who will help him become the wonderful companion he has the potential to be.
At four months old, Mateo is in an important stage of puppyhood. Everything from meeting new people to learning household routines can help shape his confidence and behavior as he grows.
Terrier mixes are often known for being intelligent, curious, playful, energetic, and full of personality. They may be small or medium in size, but they often have big personalities and plenty of enthusiasm for exploring the world around them.
As a Terrier mix, Mateo may develop some of these wonderful characteristics as he matures. He would benefit from a family that enjoys spending time with their dog and can provide daily playtime, age-appropriate exercise, mental enrichment, positive socialization, and plenty of affection.
Because Mateo is still growing, his adult size cannot yet be determined from his current weight alone.
With patience, consistency, and love, Mateo has the opportunity to grow into a loyal and wonderful lifelong companion.
Training, Adjustment & What to Expect
At only four months old, Mateo is still learning about the world, and his future family should be prepared for all the normal responsibilities that come with raising a puppy.
Rescue dogs may arrive with basic training at best, so adopters should be ready to continue working on potty training, crate training if desired, leash walking, basic commands, recall, appropriate chewing, household boundaries, and positive socialization.
Terriers can be clever, curious, and sometimes independent thinkers. Positive reinforcement, patience, repetition, and consistent routines will help Mateo understand what is expected of him while building a strong relationship with his new family.
Short, enjoyable training sessions are especially helpful for young puppies. His adopter should also understand that accidents, chewing, and occasional mischief are normal parts of puppyhood.
Mateo will need a family willing to invest the time and effort required to guide him through his puppy stages and into adulthood.
The 3-3-3 Rule
3 Days: Time to decompress and begin feeling safe.
3 Weeks: Time to understand his new household routine.
3 Months: Time to build trust, settle in, and begin feeling truly at home.
These are guidelines rather than deadlines. Every rescue dog adjusts at their own pace, and Mateo should be given the time he needs to feel safe and secure.
Owner Responsibilities & Veterinary Care
Mateo's vaccinations are current, and his neuter status has not yet been confirmed.
Because he is only four months old, his adopter should review his medical records with a veterinarian to determine whether he needs additional puppy vaccine boosters, deworming, flea and parasite prevention, microchipping, or other preventive care.
If Mateo has not yet been neutered, his future family should discuss age-appropriate neutering with a veterinarian.
As a growing puppy, Mateo will need quality puppy nutrition, regular veterinary examinations, appropriate exercise, dental care, grooming, nail care, and continued preventive healthcare.
His family should also be mindful of his developing bones and joints, avoiding excessive repetitive jumping or strenuous forced exercise while he continues growing.
Adopting a puppy is a long-term commitment that includes the time, financial responsibility, training, and care necessary throughout his life.
Adoption Information
If you are interested in adopting Mateo, please complete an adoption application:
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 life.
Adopting Mateo means committing to his training, veterinary care, exercise, safety, companionship, and happiness throughout his life.
Mateo is just four months old, with his whole life waiting to unfold. There are so many firsts ahead of him—his first adventures, new lessons, favorite toys, and the special bond he'll build with his forever family. This sweet little Terrier doesn't need a perfect home. He needs a loving family willing to grow with him, guide him, and make sure he never has to wonder where he belongs.
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