Male Lions may engage in cannibalism by killing and eating rival cubs. Their behaviour has been known to be territorial.
Hamsters are cute little mammals who surprisingly engage in cannibalism. They do it when they're in stressful conditions of there's lack of food.
Chimpanzees sometimes kill and eat infants from the rival groups. They showcase cannibalistic behaviours when there's competition for resources.
When Seals are in harsh or crowded surrounding, they may exhibit cannibalistic behaviours. It's due to shortage of food and competition.
Tigers are known to attack and eat other tigers. They practice cannibalism where there's food scarcity. Territorial disputes and competition can also make them do so.
When the food is scarce or there's extreme conditions, Polar Bears engage in cannibalism. Adult males are known to eat cubs when their survival instincts kick in.
Cane Toad are known to practice cannibalism when they're in overcrowded surroundings. They eat tadpole and smaller toads, especially when there's less food.
Black Widow Spider has a cannibalistic behaviour. The females often eats the male after mating. This behaviour is known to have nutritional benefits that aids in reproduction and survival.
Alligators engage in cannibalism where there food scarcity. Territorial disputes can lead to cannibalistic behaviours where younger ones are often preyed upon.