vertebant

Vertebrants are a group of animals that possess a backbone or spinal column, which is a series of vertebrae. This characteristic is a key feature that distinguishes vertebrates from invertebrates. The backbone provides structural support and protection for the spinal cord, which is the central nervous system's main pathway. Vertebrates are further divided into several classes, including fish, amphibians, reptiles, birds, and mammals. Each class has unique adaptations and characteristics that have allowed them to thrive in various environments. The evolution of the backbone has been a significant factor in the diversification and success of vertebrates on Earth.