Hyaenas are carnivorous mammals known for their unique social structure and vocalizations. They belong to the family Hyaenidae and are primarily found in Africa and parts of Asia. There are four species of hyaenas: the spotted hyaena, brown hyaena, striped hyaena, and the aardwolf. They are often recognized for their strong jaws and scavenging habits, although they are also skilled hunters. These animals live in groups called clans, which can consist of up to 80 individuals. Hyaenas communicate using a variety of sounds, including whoops and giggles, which help maintain social bonds. Their role in the ecosystem includes scavenging and controlling prey populations, making them important for maintaining balance in their habitats.