The Ol Pejeta Conservancy is a 360 km² not-for-profit wildlife conservancy in Central Kenya's Laikipia County. It is situated on the equator west of Nanyuki, between the foothills of the Aberdares and Mount Kenya. From Wikipedia
The arrival of big-headed ants has led to a domino effect in the Ol Pejeta Conservancy, with lions now hunting buffalos instead of zebras.