👉 Rhinos are mammals that live in large herds, primarily in Africa. They have a unique set of features that distinguish them from other mammals, including their long snout and ability to vocalize through a unique nasal structure known as a rhino horn. The most famous example is the Rhinodactyl, which has been described by paleontologists for its distinctive feature of having six legs instead of four, which are typical of other hoofed animals like horses and mules.