2.How do hippos use their sounds to communicate with each other?
Hippos use their sounds to express dominance, establish territories, maintain social bonds, and convey various emotions or intentions. For example, a low-intensity grunt may indicate contentment, while a loud, aggressive roar could signal a challenge to a rival. Their complex vocal repertoire allows them to express a wide range of emotions and intentions, from greeting group members to warning off potential threats. Additionally, hippos use infrasound to communicate over long distances, both in water and on land.