https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/9648575Edit ImageSaveSaveEditCropCustom TextAstacus fluviatilis, removed from the Superior test, opened, so that the insides were exposed.Original public domain image from FlickrMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 981 x 1200 px | 300 dpiLarge JPEG 2192 x 2680 px | 300 dpiFree DownloadAstacus fluviatilis, removed from the Superior test, opened, so that the insides were exposed.More