This document provides information on various endangered species of mammals, birds, reptiles, fish and insects. It describes the physical characteristics and classification of endangered Asian elephants, blue whales, hybrid spider monkeys, Asiatic cheetahs, tigers, giant pandas, black rhinoceros, Marquesan kingfishers, California condors, whooping cranes, hawksbill sea turtles, Cuban boas, Chinese alligators, Chinese paddlefish, silver sharks, and wild common carp. Each species is classified as endangered, critically endangered, or facing extinction based on population declines and threats such as hunting and habitat loss. The document encourages readers to help save these endangered animals.