https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13956914Edit ImageSaveSaveEditCropCustom TextAn insect, possibly a louse, with its circulation system depicted and its pupal stage. Coloured etching.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 719 x 1200 px | 300 dpiLarge JPEG 1368 x 2284 px | 300 dpiFree DownloadAn insect, possibly a louse, with its circulation system depicted and its pupal stage. Coloured etching.More