 In the wintertime, Przewalski's horses experience hypodermis, a condition in which one's metabolic rate slows down.They eat their food more slowly than they do during other times of the year.Looking at the species diet overall, however, Przewalski's horses most often eat "E. repens", "Trifolium pratense", "Vicia cracca", "Poa trivialis", "Dactylis glomerata", and "Bromus inermis".