https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14021439Edit ImageSaveSaveEditCropCustom TextFennel-leaved pondweed (Potamogeton pectinatus) with an associated beetle and its anatomical segments. Coloured etching, c. 1831.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 731 x 1200 px | 300 dpiLarge JPEG 1200 x 1971 px | 300 dpiFree DownloadFennel-leaved pondweed (Potamogeton pectinatus) with an associated beetle and its anatomical segments. Coloured etching, c. 1831.More