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15 feral horse colonies from around the world

By: Catie Leary on July 5, 2016, 7:02 a.m.
Feral Danube Delta horses

Photo: iliuta goean/Shutterstock

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Danube Delta horses

These picturesque creatures live among the wetlands and forests of Romania's Danube Delta region.

While there has been a feral horse presence in this area for centuries, the number of individuals has ballooned to 4,000 since the 1990s as a result of humans closing their farms and releasing their livestock into the wild.

Though the horses are an obvious subject of inspiration and curiosity, their unchecked numbers pose serious threats to indigenous plant life.