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.
Groundhog
In the wild, groundhogs can live up to six years with two or three being average. In captivity, groundhogs reportedly live up to 14 years. Humans, dogs, coyotes, and foxes are about the only predators that can kill adult groundhogs although young may also be taken by owls and hawks. The red fox is the major predator of "Marmota monax". Occasionally woodchucks may suffer from parasitism and a woodchuck may die from infestation or from bacteria transmitted by vectors. In areas of intensive agriculture and dairying regions of the state of Wisconsin, particularly the southern parts, the woodchuck by 1950 had been almost extirpated. Jackson (1961) suggested the amount of damage done by the woodchuck had been exaggerated and that excessive persecution by people substantially reduced its numbers in Wisconsin. In some areas marmots are important game animals and are killed regularly for sport, food, or fur. In Kentucky an estimated 267,500 "M. monax" were taken annually from 1964 to 1971 (Barbour and Davis 1974) Woodchucks had protected status in the state of Wisconsin until 2017. Woodchuck numbers appear to have decreased in Illinois.