Feral wild horses (Equus cabalius), Cape Lookout National Seashore, 2015.

Cape Lookout NS protects one of the last remaining herds of wild horses on the eastern coast of the United States. Although somewhat short for horses (and closer to the size of ponies) their stature is most-likely a result of their diet, rather than genetics. The park controls the population of this non-native species but doesn't feed, water or vaccinate them. The horses' diet consists primarily of four grasses on the island: centipede grass, smooth cordgrass, saltmeadow cordgrass and sea oats. Find more information on the horses here: http://www.nps.gov/calo/learn/nature/horses.htm