https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13987145Edit ImageSaveSaveEditCropCustom TextBlood corpuscles of a frog. Photomicrograph by Léon Foucault, 1844.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 887 px | 300 dpiLarge JPEG 1660 x 1227 px | 300 dpiFree DownloadBlood corpuscles of a frog. Photomicrograph by Léon Foucault, 1844.More