New male leaders of a pride kill existing cubs, to avoid raising offspring that aren’t theirs
Polar bears rarely ate each other before, but now they do more often due to climate change
Male chimps kill infants they don’t think are theirs, to get more mating chances and beat rival males.
Hippos sometimes kill and eat other adult hippos, but not their babies
The unborn babies of this shark fight and eat each other inside the mother’s womb
Female black widows also eat their tiny male partners, sometimes during sex
Big tadpoles of cane toads gobble up their newly hatched siblings
Mother hamsters may eat their newborns if they lack vital nutrients
Female mantises often decapitate and devour male mantises after mating
These worm-like amphibians feed their babies with a fatty skin layer that regrows every three days