Hippos have very strong enamel, which is the strongest among all mammals. This is because hippos mainly eat tough vegetation and need strong teeth to chew it. In addition, hippos have several unique adaptations to protect and maintain their teeth, including a distinctive jaw structure and special bacteria in their saliva that help keep the enamel in good condition.
In addition to their teeth, hippos have very powerful jaws. A hippopotamus’s bite force can reach 1,200 kg. This allows it to easily chew even the toughest food and defend itself against predators. Furthermore, a hippopotamus can open its mouth very wide, which also helps it in fighting off enemies.