Mud (Kinosternon spp.) and musk (Sternotherus spp.) turtles are two common, hardy species that remain rather small. While most remain less than 5 inches in length, a few individuals may grow slightly larger. Mud and musk turtles are primarily aquatic, though they require a small land area on which they can bask. Mud and musk turtles are omnivorous, but they eat insects, fish, worms and carrion in the wild. A note about these relatively small turtles: they can make a pretty big stink. When these turtles feel threatened, they can release a musky odor.
According to the Ontario Ministry of Agriculture, the average lifespan of a horse is 28 + 5 years. That means the average lifespan of a domestic horse is 25 to 33 years. Many horses go well beyond this average. Ponies tend to live longer with many ponies still serving as schoolmasters well into their 30s. A few ponies and horses may even reach the age of 40 or over. The oldest horse ever recorded was 52 years old.
The size of horses varies by breed, but also is influenced by nutrition. Light riding horses usually range in height from 14 to 16 hands (56 to 64 inches, 142 to 163 cm) and can weigh from 380 to 550 kilograms (840 to 1,210 lb).