Even more alarming, bipolar women are 100 times more likely than other women to experience postpartum psychosis, a severe mood disorder that, at its very worst, can result in infanticide.
Male rats sometimes eat their young rather than nurture them, which makes them a poor model for studying how fatherhood affects the brains of species that frown on infanticide.
A lioness may try to defend her cubs against infanticide, but if she fails she does not plan vengeance against the male who did it.
Would life in the tundra justify infanticide?
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