https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13990453Edit ImageSaveSaveEditCropCustom TextA mule wearing only a halter standing in a mountainous landscape. Etching by J. E. Ridinger.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 892 x 1200 px | 300 dpiLarge JPEG 1441 x 1939 px | 300 dpiFree DownloadA mule wearing only a halter standing in a mountainous landscape. Etching by J. E. Ridinger.More