https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13987100Edit ImageSaveSaveEditCropCustom TextTwo African oxen with huge horns standing on a hillside. Etching by C. Heath, ca 1814, after H. Salt.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 862 px | 300 dpiLarge JPEG 3150 x 2263 px | 300 dpiFree DownloadTwo African oxen with huge horns standing on a hillside. Etching by C. Heath, ca 1814, after H. Salt.More