https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13968000Edit ImageSaveSaveEditCropCustom TextOn the left, a hippopotamus climbing out of the water. On the right, a rhinoceros coming out of the reeds. Coloured chalk lithograph.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 952 px | 300 dpiLarge JPEG 3005 x 2385 px | 300 dpiFree DownloadOn the left, a hippopotamus climbing out of the water. On the right, a rhinoceros coming out of the reeds. Coloured chalk lithograph.More