This document provides interesting facts about rhinos, including that a baby rhino weighs 20 times a human baby, black rhinos live in Africa, and most rhinos like to live alone, ranging from 3 to 15 kilometers. It notes that white rhinos are the biggest and that rhinos are endangered because people killed them for their horns. The document also classifies rhinos as vertebrate mammals that live in herds or crashes, live in Africa in woodlands and caves, eat grass and leaves, and are related to tapirs.