https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13992910Edit ImageSaveSaveEditCropCustom TextExperiments in physiology. Facial expressionsOriginal public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 830 x 1200 px | 300 dpiLarge JPEG 2421 x 3500 px | 300 dpiBest Quality JPEG 5300 x 7663 px | 300 dpiFree DownloadExperiments in physiology. Facial expressionsMore