As with many animals, it is not unusual for an adult male hedgehog to kill newborn males.
Repeated matings will kill males, so they are generally very wary of the females.
For Mantle it was the Hodgkin's disease that killed most males in his family before they reached 40.
What kills males in other words, preferential to females, is the very thing that promotes their reproductive success.
Kong was programmed to kill Titanides and human males, and to imprison human females.
One of their premises is to kill white males, and the victim in this case was, in fact, a white man.
Females have even been observed to kill immigrant males in wild red colobus monkeys.