The Animal Kingdom is a vast classification of living organisms that includes all animals on Earth. It is one of the major kingdoms in biological classification, alongside others like Plantae (plants) and Fungi (fungi). Animals are typically characterized by their ability to move, consume organic material, and reproduce sexually. They range from simple organisms like sponges to complex beings like humans. Within the Animal Kingdom, animals are further divided into various groups, known as phyla. These groups include mammals, birds, reptiles, amphibians, and invertebrates. Each group has unique features and adaptations that help them survive in different environments, from the depths of the ocean to the highest mountains.