The document discusses the main threats facing endangered animals: habitat destruction, pollution, and hunting. Habitat is destroyed when forests are cut down for furniture and development, polluting the environment makes it difficult for aquatic animals to breathe, and overhunting reduces populations. Examples are given of species that are endangered or extinct due to these threats. The document argues that if animal populations continue to decline, it will disrupt food chains and ecosystems. It urges protecting animals to maintain biodiversity, for ecological reasons, and because humans benefit from animals through food, medicine, and companionship. A proposed solution is setting up breeding centers to increase endangered populations before reintroducing them to nature, along with stricter enforcement against illegal hunting.