A lot of anti-LGBTQ bigots like to invoke something called 'natural law' when opposing policies such as same-sex marriage. Needless to say, these morons don't know squat about nature, which is pretty damn complicated. In the latest bit of 'animals getting freak-AY' news, we have adolescent female Japanese macaques engaging in sexual behavior with sika deer. Psst, nobody tell Roy Moore about this kink, or he'll be molesting monkeys.
Male macaques have also been observed sexing up deer:
The most realistic hypothesis would be that of mate deprivation, which states that males with limited access to females are more likely to display this behaviour.
It's a good thing that Reddit banned its 'Incels' group, otherwise these assholes would be writing about trying to bang Clarice.