Tetrapods

Tetrapods are a group of animals that evolved from early fish and have four limbs or limb-like structures. This group includes amphibians (like frogs), reptiles, birds, and mammals. Their evolution allowed them to move onto land, giving them the ability to walk, run, and explore terrestrial environments. Tetrapods typically have a backbone, a complex skeletal system, and adaptations for life both in water and on land. They represent a major step in vertebrate evolution, making up most land-dwelling vertebrates today.