Which type of animal has a backbone?

Vertebrates are the group of animals that possess a backbone or vertebral column, which is a key characteristic that distinguishes them from invertebrates. The backbone is part of an internal skeleton, providing structural support and protection for the spinal cord, which is crucial for movement and coordination. This group includes various subcategories such as mammals, birds, reptiles, amphibians, and fish. Each of these species has developed this backbone, allowing for greater mobility and complexity in physical structure compared to invertebrates, which lack a backbone and include animals such as insects, mollusks, and worms. Hence, identifying vertebrates as animals with a backbone highlights the fundamental difference in anatomy and classification within the animal kingdom.