06 April 2018
Vol 360, Issue 6384

About The Cover

Cover image expansion

COVER Przewalski's horses, represented by this mare and foal from Orenburg Reserve, Russia (part of the Program of Establishing a Semi-Free Population of the Przewalski's Horse in the Orenburg Reserve), are a distinct and endangered lineage previously thought to have purely wild origins. Archaeological and ancient genomic evidence now reveals that the earliest domesticated horses found in the Botai culture, Kazakhstan (5500 years ago), are likely the direct ancestors of Przewalski's horses rather than modern domestic stock. See page 111.
Photo: Natalia Sudets