https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13967661Edit ImageSaveSaveEditCropCustom TextA swallow in flight. Engraving, ca. 1690, after F. Barlow.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 858 px | 300 dpiLarge JPEG 3154 x 2254 px | 300 dpiFree DownloadA swallow in flight. Engraving, ca. 1690, after F. Barlow.More