https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13960353Edit ImageSaveSaveEditCropCustom TextCirculatory systems: seven diagrams, indicating the heart and circulatory systems of mammals, birds, reptiles, lobsters, fish and arachnids. Watercolour drawing by J.C. Whishaw, 1852/1854.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 766 x 1200 px | 300 dpiLarge JPEG 2235 x 3500 px | 300 dpiBest Quality JPEG 2363 x 3701 px | 300 dpiFree DownloadCirculatory systems: seven diagrams, indicating the heart and circulatory systems of mammals, birds, reptiles, lobsters, fish and arachnids. Watercolour drawing by J.C. Whishaw, 1852/1854.More