The Beaglier is a hybrid breed, resulting from a cross between the Beagle and the Cavalier King Charles Spaniel. Known for its friendly and affectionate nature, the Beaglier typically has the Beagle's keen sense of smell and the Spaniel's gentle temperament. It is a small to medium-sized dog, often featuring floppy ears and a short coat. Beagliers are energetic and enjoy playtime, making them excellent companions for families and active individuals. They thrive in environments where they can explore and use their senses, often displaying a curious and playful demeanor.

The Beaglier is a designer dog breed, a cross between a Beagle and a Cavalier King Charles Spaniel, and does not have a native region in the wild. It was developed in Australia in the 1990s.

As a domesticated dog breed, Beagliers are typically found in human environments. They thrive in homes where they can have access to both indoor comforts and outdoor spaces for exercise.

The Beaglier's ecological niche is primarily as a companion animal. They inherit the Beagle's scent-tracking ability and the Cavalier's affectionate nature, making them suited for families or individuals seeking a friendly, sociable pet.