https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13965263
A hawthorn twig (Crataegus species) with an associated butterfly, its caterpillar, chrysalis and anatomical segments. Coloured etching, c. 1831.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use