Horse
Depending on breed, management and environment, the modern domestic horse has a life expectancy of 25 to 30 years. Uncommonly, a few animals live into their 40s and, occasionally, beyond. The oldest verifiable record was "Old Billy", a 19th-century horse that lived to the age of 62. In modern times, Sugar Puff, who had been listed in "Guinness World Records" as the world's oldest living pony, died in 2007 at age 56.
American Water Spaniel
Additional concerns are hypothyroidism, allergies, epilepsy, diabeties and glandular disorders which may cause baldness. The hair loss occurs at around six months of age, affecting the neck, thighs and tail; however the frequency has been reduced through work conducted by the breed clubs. Hip dysplasia is seen in around 8.3% of the breed, according to surveys conducted by the Orthopedic Foundation for Animals over a twenty five-year period between 1974 and 1999. This was one of the lower results of the sporting breeds, with Greyhounds coming lowest with 3.4%, and the related Boykin Spaniel coming in second highest at 47%. There was no evidence of elbow dysplasia found. The breed has an average life span of 10–13 years.