Animal sexual behaviour however, is proving to be false as, "most hormones don’t influence behaviour directly. Rather, they affect thinking and emotions in variable ways (Azar, 40)." There is much more involved in sexual behaviour in the mammalian animal than oxytocin and vasopressin can explain. It is often assumed that animals do not have sex for pleasure, or alternatively that humans, pigs, bonoboes (and perhaps dolphins and one or two more species of primates) are the only species that do. This is sometimes stated as "animals mate only for reproduction". This view is considered a misconception by some scholars. Jonathan Balcombe argues that
Abstinence-only sex education is not supported by the majority of public school teachers, parents, and students. The majority in each of these groups is opposed to abstinence-only curriculum and wants a more comprehensive curriculum. "Although more than nine in 10 teachers believe that students should be taught about contraception... one in four are instructed not to teach the subject." Even when there are no rules limiting sex education to abstinence-only, teachers may continue to teach abstinence-only curriculum because they fear retaliation from the local community. Parents also want their children to be taught about contraception. "Most parents (65%) believe that sex education should