By Manish Choudhary
These little guys are tough and bold. They don't back down from anything and can get feisty if they feel threatened.
Elephants are usually calm, but if they feel scared or think you're a threat to them or their babies, they can become aggressive.
These crocs are huge and really mean. They sneak up on their prey, even humans, and can be very dangerous.
They're big and can be unpredictable. If they feel cornered or scared, they might charge at you suddenly.
These jellyfish in Australia have tentacles with venom that hurts a lot and can even kill.
These sharks are known for being fearsome hunters. Sometimes they mistake humans for prey and attack.
Lions are kings of the jungle and can get aggressive, especially if they feel threatened or someone messes with their group.
Though they're usually chill, polar bears can be aggressive when hungry or protecting their cubs.
These big lizards have powerful bites and are good at hunting. They can be aggressive, especially when they're hungry.
Rhinos can be territorial and get aggressive if they feel threatened by humans or other animals.