African shoebill: four figures showing the head and feet of male and female birds. Chromolithograph by H.J. Ruprecht, 1877. https://www.rawpixel.com/image/13966942/image-paper-cartoon-plantFree Image from public domain licenseSection of tumour lying beneath the pleura at the base of the lung https://www.rawpixel.com/image/14020268/section-tumour-lying-beneath-the-pleura-the-base-the-lungFree Image from public domain licenseLarge brown fruits, similar to Japanese persimmon fruits, and two grass seedheads. Watercolour. https://www.rawpixel.com/image/14006801/image-paper-plant-grassesFree Image from public domain licenseHalf orange clip art color illustration. Free public domain CC0 image. https://www.rawpixel.com/image/6330311/image-sticker-public-domain-illustrationsFree Image from public domain licenseRuby-throated hummingbird feeding from an obedient plantObedient plants bloom from August to October and can grow up to four… https://www.rawpixel.com/image/4028470/photo-image-flower-plant-birdFree Image from public domain licenseLeft kidney in a state of suppuration following the application of an enormous blister https://www.rawpixel.com/image/13990864/image-public-domain-food-drawingFree Image from public domain licensePalaeozoic Fossils. Halonia. From the South Staffordshire Coal, Field, near Dudley. Collection of Mr. Shedden, Dudley. by L… https://www.rawpixel.com/image/14289592/photo-image-art-public-domain-paintingFree Image from public domain licensePeriwinkle (Vinca sp.): entire flowering plant. Coloured etching by M. Bouchard, 1772. https://www.rawpixel.com/image/13983638/image-plant-art-patternFree Image from public domain licenseVarious testaceous and crustaceous animals, including sea urchins and crabs. Engraving by J. Mynde. https://www.rawpixel.com/image/14008532/image-pattern-football-seaFree Image from public domain licenseWood pellets ET5A3109Jensen Lumber Co Inc in Ovid, Idaho. Original public domain image from Flickr https://www.rawpixel.com/image/4034857/photo-image-plant-hand-personFree Image from public domain licenseDandelion (Taraxacum officinale): root and leaves. Watercolour. https://www.rawpixel.com/image/13962183/dandelion-taraxacum-officinale-root-and-leaves-watercolourFree Image from public domain licenseFree pouring honey on pancakes with walnuts image, public domain food CC0 photo. https://www.rawpixel.com/image/5927633/photo-image-public-domain-food-freeFree Image from public domain licenseHalloween at the Commandant of Cadets' house. Original public domain image from Flickr https://www.rawpixel.com/image/5977140/photo-image-public-domain-plant-natureFree Image from public domain licenseVaccine bandage on women's arm. Original public domain image from Flickr https://www.rawpixel.com/image/5803515/photo-image-background-public-domain-covid19Free Image from public domain license