In the wild, animals sometimes attack their own species to establish dominance or to pass on their genes. Witnessing these strange behaviors can be fascinating, and in this article, we will count down 15 moments of animals attacking and eating each other.

Number 15: Ground Squirrel

Ground squirrels fight, and sometimes one squirrel kills the other and eats it. Even squirrels turn to cannibalism when they’re hungry. This behavior is not uncommon among these little rodents.

Number 14: Piranha

Cannibalism is a trait of piranhas, especially during the dry season when food is scarce. If they feel threatened, they will nip at the tail and eyes of other piranhas. They also eat other fish as a natural part of their diet. In aquariums, it can happen if the tank is too small or if they are not fed enough. Watch this video to see a giant grouper eat a smaller fish in one bite.

Number 13: Snails

Believe it or not, snails eat other snails. Watch this video to see how they do it.

Number 12: Prairie Dogs

Infanticide is a common occurrence among black-tailed prairie dogs, but not so in Gunnison’s prairie dogs. However, the dominant male of the clan took issue with a mother’s decision to move her three babies to a new borough, and cannibalism ensued.

Number 11: Tigers

Tigers do not typically hunt each other, but they may fight over territory or expand their territory to include places with a healthy prey base. Watch this video to see two tigers engage in a clash of the titans.

Number 10: Crocodiles

Crocodiles will kill and eat other crocodiles, as seen in this amazing overhead shot. With so many crocodiles close to one another, scuffles are bound to occur.

Number 9: Praying Mantis

True love has the power to break your heart if you’re a male praying mantis. The female bites off the male’s head and eats him alive.

Witnessing these moments can be both fascinating and gruesome. But it is a reminder that in the wild, survival is the name of the game.