Analysis of information sources in references of the Wikipedia article "رفتار جنسی غیرتولیدمثلی در جانوران" in Persian language version.
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: نگهداری یادکرد:نامهای متعدد:فهرست نویسندگان (link)Every time males engage in sex, they salivate on their mate’s genitals. "In this spider species, the male first hooks his fang to female genitals, and then salivates into them. He repeats this behavior before, between and after copulation, up to 100 times in one mating," says Matjaž Gregorič of the Slovenian Academy of Sciences and Arts, who led the new study. Gregorič isn’t sure what motivates the behavior, which has only been recorded in two other invertebrates: fruit flies and widow spiders. The practice hasn’t been well-documented in widow spiders, so their bedroom habits don’t make the darwini's proclivity for oral activities any less mysterious.