Cuatro programas Sub-genres can also be classified into the characteristics of the performers or the type of sexual activity on which it concentrates, and not necessarily on the market to which each sub-genre appeals. The wife who enjoys cuckolding her husband is frequently called big tit milfs a hotwife, or a cuckoldress if the man is more submissive. Specific sex acts Anal Anal pornography features anal penetration with a penis, dildo, other objects, or some combination of them. Pornographic films are typically categorized as either softcore or hardcore pornography. For much of the history of cinema and television, lesbianism was considered taboo, though since the 1960s it has increasingly become a genre in its own right. Bondage/BDSM Bondage pornography features performers tied up or constrained in various ways. Voyeur pornography may also include shots of topless women on topless beaches who are unaware of the cameras but may legally be photographed due to the public setting. Pornography is often distinguished from erotica, which consists of the portrayal of sexuality with high-art aspirations, focusing also on feelings and emotions, while pornography involves the depiction of acts in a sensational manner, with the entire focus on the physical act, so as to arouse quick intense reactions. When the interest in a particular subject is obsessive, the behavior may be described as stalking. Evolutionary psychologists suggest that rounded buttocks may have evolved to be desirable trait because they provide a visual indication of the woman youth and fertility. Preggo pornography features pregnant performers and may include erotic lactation as a fetish. Sexual orientation Pornography features an increasing variety of combinations of actors by their sexual orientation such as lesbian, gay, bisexual, and transsexuals in addition to traditional heterosexual roles. This can, however, redirect semen into the bladder . Transsexual pornography is a genre of pornography. Its primary goal is sexual arousal in its audience. de trabajo sustentan la acción de Conservación Marina; Programa de Investigación, Programa de Educación, Programa de Comunidades Costeras y Programa de Planificación para la Conservación.
Cada uno de estos, a través de sus líneas de trabajo contribuye a implementar estrategias que apoyen la conservación, protección y manejo apropiado de la fauna, flora y ecosistemas que integran la diversidad biológica marina de Chile, así como avanzar en la sustentabilidad de los medios de vida de las comunidades costeras.