Average life span: 12-15 years
Dachshunds come in two sizes — standard and miniature — and are the smallest of the hounds. They are prone to back injuries and are one of the breeds most likely to need canine wheelchairs. Normal behavior like jumping on and off of furniture is hazardous to dachshunds, due to their long, low-slung backs. Training them to use ramps to access sofas or beds can help prolong their life expectancy since there is less risk of back problems.
Image via Flickr