Assateague Island National Seashore may be most famously known for the wild horses that roam free on the island. ``Many of the horses on the island measure under 14 hands (4 ft 8 inches) in height, which would normally qualify them as ponies, most of their stock comes from horse breeds. Thus, despite their stunted height, which is attributed to their salty diet, they are considered horses and not ponies.'' I can never remember if they are really horses or ponies- they're not actually interchangeable names for the same thing!