The Expression of the Emotions in Man and Animals in the field of comparative psychology and his impact on academic psychology was muted, partly because of the widespread influence of the behaviourist school during the twentieth century. The lavish style of biological illustration was followed in work on animal locomotion by photographer Eadweard Muybridge (1830–1904)(leading to cinematography), and by the Scottish naturalist James Bell Pettigrew (1832–1908); in the extensively (and controversially) illustrated works of the evolutionary biologist Ernst Haeckel; and – to a lesser extent – in D'Arcy Thompson's "On Growth and Form" (1917). Darwin's ideas were followed up in William James' "What Is An Emotion ?" (1884); and,
Catholic theology of the body positive image of man by stating his freedom and independence. God is truly free and the freedom of man, even if limited, is an image of God. Not only his freedom, but also his ability to love - God is love - and his immortality, make man an image of God. Regarding the human body, Gregory opines that it is created for procreation. In that, humans are like animals; however, the human body also has the capacity for reasoning and perception. The body has three forms of life: the vegetative, sensual and intellectual. The human body derives its dignity from