When sex means reproduction, certain proclivities may simply not be part of cultural models of sexuality: "Barry and Bonnie Hewlett had been studying the Aka and Ngandu people of central Africa for many years before they began to specifically study the groups' sexuality... [T]he Hewletts conclude, "Homosexuality and masturbation are rare or nonexistent [in these two cultures], not because they are frowned upon or punished, but because they are not part of the cultural models of sexuality in either ethnic group."" [more inside]
In his Scientific American column Bering in Mind, Jesse Bering wrote an article about why we masturbate (previously). Emily Nagoski, a self described feminist "with strong opinions and a big vocabulary", took offense to a line in the column in which he expressed disgust about the idea of researchers gathering and studying vaginal secretions, and wrote about it in her blog Sex Nerd, accusing him of anti-feminism. Bering responds. [more inside]
And scientific researchers appear to be slowly conceding that zoophilia may be a genuine human sexual orientation. Scientific American's Jesse Bering research into zoophiles, prompted by a "an unusually erudite reader ... a self-professed zoophile" leads to more questions than answers: Are zoophiles attracted only to sexually mature animals—and if not, does this make them “zoopedophiles”? Do zoophiles find particular members of their preferred species more “attractive” than other individuals from those species, and, if so, are they seduced by standard beauty cues, such as facial symmetry in horses? What is the percentage of homosexual zoophiles (those who prefer animal partners of the same sex) over heterosexual zoophiles?