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15 feral horse colonies from around the world

By: Catie Leary on July 5, 2016, 7:02 a.m.
Feral horses of the Outer Banks.

Photo: John Wijsman /Shutterstock

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Banker horses

Grazing upon the marsh grasses of North Carolina's Outer Banks, these equines originated along the coast much like other feral populations up and down the Eastern sea board. They're believed to be the descendents of domesticated Spanish horses that were brought to the continent in the 16th century.

Managed by the National Park Service, banker horses possess a slightly diminutive stature thanks to a sparse diet that results in stunted growth.