A Labrador retriever's average life span is 10 to 12 years, according to PetMD. They are prone to several health issues, including canine hip dysplasia and patellar luxation.
Labrador retrievers, which can be yellow, black or brown in color, weigh between 50 and 80 pounds. They generally reach about 21 to 24 inches tall as adults. They have short hair that is straight and dense, a strong jaw and a broad head. Labrador retrievers are classified as working dogs, and are often trained to hunt, being labeled a "gun dog." They generally like to swim, and get along easily with other dogs and with children.