Cuteness is a kind of attractive beauty commonly associated with youth, innocence and helplessness, as well as a scientific concept and analytical model in Ethology, first introduced by Konrad Lorenz. This is usually characterized by (though not limited to) some combination of infant-like physical traits, especially small body size with a disproportionately big head, large eyes, a small nose, dimples, and round and softer body features. Infantile personality traits, such as playfulness, fragility, helplessness, curiosity, innocence, affectionate behaviour and a need to be nurtured are also generally considered cute.