Species-typical behavior or "species-specific behaviour" is a concept in ethology or psychology. Species-typical behaviours are mostly innate behaviours that can be seen by almost all the members of a species. Commonly, it is viewed as inherit from parents. Those behaviours are mostly important or essential for that particular species’ survival and reproductive success. However, these behaviours may not be always seen on one individual as species typical behaviours are commonly stimulated by particular external stimuli. The effect of stimulation will lessen because of lapse of time. Nevertheless, species-typical behaviours may be re-stimulated by those stimuli afterwards. Species-typical behaviour can also be referred to as species specific, an example of this would be facial expressions in most mammals, such as apes.