The research was carried out by the Weizmann Institute of Science, Israel, and appeared in PLOS Biology, a US science journal. Though it involved female tears, because women made themselves available as donors, it probably isn't a sex-dependent effect, the authors say.
Numerous studies have shown rodent tears contain chemicals serving as social signals they emit on demand -- female mice tears for example reduce fighting among males; and subordinate male mole rats smear themselves in their own tears so that dominant males attack them less. Читать дальше...