1, crocodile: crocodile's strong bite force and sharp teeth can easily subdue hippos.
2. Lion: The lion's strong body and sharp claws enable it to defeat hippos in one-on-one combat.
3. Elephant: Elephants are huge and can control hippos with their noses and strength.
4. Hyenas: There are many hyenas, and hippos can attack uniforms through groups.
5. Crocodile bird: Crocodile bird can attack hippo's eyes with its sharp mouth, making hippo lose its fighting power.
6. Leopard: The speed and agility of the leopard can give it the upper hand in the battle.
7. Rhino: Rhino's horns can easily pierce hippo's skin.
8. snapping turtles: snapping turtles can put away their hard shells to protect themselves and attack hippos with their claws.
9. Snake: poisonous snakes can attack hippos with venom, making hippos lose their fighting power.
10, Iguanas: Iguanas can use their speed and agility to avoid hippopotamus attacks and attack hippopotamus with their teeth.