Queen Victoria, seated in an armchair by an open fire, day-dreaming about illustrious men of her reign. Colour lithograph by… https://www.rawpixel.com/image/13965889/image-cartoon-face-personFree Image from public domain licenseU.S. Marine Corps Cpl. Autumn Hettich, a motor transport operator with Logistics Combat Element, Marine Rotational Force -… https://www.rawpixel.com/image/3393873/free-photo-image-australia-female-soldier-armoredFree Image from public domain licenseErasmus Darwin. Stipple engraving by M. Alpin, 1825, after J. Wright. https://www.rawpixel.com/image/14001662/erasmus-darwin-stipple-engraving-alpin-1825-after-wrightFree Image from public domain licenseCharles Robert Darwin. Line engraving by C. Cook after Elliot & Fry. https://www.rawpixel.com/image/13989499/charles-robert-darwin-line-engraving-cook-after-elliot-fryFree Image from public domain license"Krao", the "missing link" : a living proof of Darwin's theory of the descent of man : special lectures, 2.30, 5.30 &… https://www.rawpixel.com/image/14002512/image-jungle-paper-cartoonFree Image from public domain licenseErasmus Darwin. Stipple engraving by J. Heath, 1804, after J. Rawlinson. https://www.rawpixel.com/image/14020536/erasmus-darwin-stipple-engraving-heath-1804-after-rawlinsonFree Image from public domain licenseDog caressing his master from Darwin's Expressions of Emotions https://www.rawpixel.com/image/13981294/dog-caressing-his-master-from-darwins-expressions-emotionsFree Image from public domain license