Two grevy's zebra eating on dry hays, shaking its head and body to deter the annoying horse-flies at Singapore safari zoo, mandai wildlife reserves

grevy grevys zebra zebra zoo captivity wildlife safari stripe enclosure endangered africa animal conservation kenya graze equid equus wild family species eat reserve mandai dazzle shake threatened feed interrupt get rid adult exotic nature equine food grass mother hay zeal singapore young habitat natural imperial king deter grevyi tropical flies munch