Editing Animal sexual behaviour (section)

===Sex between adults and juveniles===
It has also been recorded that certain species of [[Mole (animal)|mole]] will impregnate newborns of their own species. {{Fact|date=February 2007}} It is not clear if this is forceful or not. Similarly, the male [[stoat]] (Mustela erminea) will mate with infant females of their species.<ref>{{cite journal | author = Doncarlos, Michael W., Petersen, Jay S., Tilson, Ronald L. | title = Captive biology of an asocial mustelid; ''Mustela erminea'' | journal = Zoo Biology | volume = 5 | issue = 4 | pages = 363–370 | year = 1986 | doi = 10.1002/zoo.1430050407}}</ref> This apparently is a natural part of their reproductive biology - there is a delayed gestation period, so these females give birth the following year when they are fully grown.

A male spotted hyena which attempted to mate with a female which succeeded in driving it off, eventually turned to its ten-month-old cub, repeatedly [[mounting]] it and ejaculating on it.  The cub sometimes ignored this and sometimes struggled 'slightly as if in play'.  The mother did not intervene.<ref>H. Kruuk, ''The Spotted Hyena'', (University of Chicago Press, 1972), p. 232 </ref>

Infants and children in Bonobo societies often are involved in sexual behaviour..<ref name=ancestor>{{cite book |last=Dawkins |first=Richard |authorlink=Richard Dawkins |title=The Ancestor's Tale |year=2004 |publisher=Houghton Mifflin |chapter=Chimpanzees}}</ref>