A mammal inner support fram

Mammals possess an internal support framework primarily made up of bones, known as the endoskeleton, which provides structure, protects vital organs, and facilitates movement. This framework consists of a skull, vertebral column, rib cage, and limbs, all made of various types of bone and cartilage. Unlike exoskeletons found in some invertebrates, the endoskeleton grows with the animal and allows for greater flexibility and adaptation. Additionally, mammals have a unique skeletal structure that supports their diverse lifestyles and modes of locomotion.