File:Comparison Of Size Of Gibbon, Human, Chimpanzee (Pan Troglodytes) Western Gorilla (Gorilla Gorilla) (standing), And Orangutan (Pongo Abelii).svg
Note that apes do not normally stand upright as their normal posture.
Reference made toː https://commons.wikimedia.org/key/File:Orang_utan_and_man.jpg and https://commons.wikimedia.org/key/File:WHITE_CHEEKED_GIBBON_(8551640880).jpg