Collie

Across 119 single-size large breeds, a lifespan midpoint of 13 years is about 0.4 years longer than the 12.6-year average. A midpoint adult weight of 62.5 lb is about 3.3 lb heavier than the 59.2 lb average for those large breeds.

The listed origin is Scotland and Northern England. The coat is described as rough, smooth, short, long. The AKC energy score is 3 out of 5, 1.1 points below the group average of 4.1 for the Herding Group. Shedding scores 3 out of 5. Grooming scores 3 out of 5. Trainability scores 4 out of 5, which is a biddable score. Good with children scores 5 out of 5. Good with other dogs scores 3 out of 5. AKC ranked this breed number 39 in 2025.

Adult size is usually reached in up to 24 months (size-band statement (Salt et al. 2017): larger breeds require up to 24 months). AKC parent-club recommended health screenings: Progressive Retinal Atrophy, Rod-Cone Dysplasia 2 (PRA-rcd2) - DNA Test, Multidrug Resistance 1 (MDR1) - DNA Test, Dermatomyositis (DMS) - DNA Test, and Collie Eye Anomaly (CEA, CH) - DNA Test. These are screening tests, not a list of diseases the breed is guaranteed to develop.