LAKE FOREST – Cooper, a red merle Australian shepherd puppy with tiny blue eyes, lifted his white snout and sniffed the air. Within a second, he caught Tim Welch’s scent and ran a few feet ...

While Australian Shepherds also come in red, white, black, and tan colors, a merle coat features dark blotches against a light coat. The blue merle dog has black patches on gray, ...

Considering how rare this mixed dog breed is, viewers flocked to the July 6 TikTok video posted by user @brandyclark089. The dog, named Goose, is half golden retriever and half blue merle ...