https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13961421Edit ImageSaveSaveEditCropCustom TextFrog-bit plant (Hydrocharis morsus-ranae) with an associated water-beetle and its abdominal segments. Coloured etching, c. 1830.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 726 x 1200 px | 300 dpiLarge JPEG 1300 x 2149 px | 300 dpiFree DownloadFrog-bit plant (Hydrocharis morsus-ranae) with an associated water-beetle and its abdominal segments. Coloured etching, c. 1830.More