Kokko, Hanna2015-12-101744-9561http://hdl.handle.net/1885/54539Keywords: monogamy; nonhuman; note; parental age; priority journal; progeny; sex difference; sexual selection; Female; Humans; Male; Maternal Age; Models, Theoretical; Parity; Paternal Age; Pregnancy; Sexual BehaviorHuman parental age difference and offspring count: and we still do not know what men or women want200810.1098/rsbl.2007.06192015-12-09