Hello, I'm an expert in the field of biology and anatomy. Let's dive into the question of whether one can live without a backbone. In the animal kingdom, the presence of a backbone, or not, is a fundamental characteristic that distinguishes two major groups: vertebrates and invertebrates. Vertebrates have a backbone, which is part of their skeletal system and provides structural support, protection for the spinal cord, and a point of attachment for muscles. Invertebrates, on the other hand, do not have a backbone and include a vast array of species such as insects, arachnids, mollusks, and many others. For vertebrates, living without a backbone is not possible because it is a critical component of their body structure and function. The backbone is essential for movement, support, and protection of vital organs and the nervous system. Without it, vertebrates would not be able to maintain their body shape, move effectively, or protect their spinal cord. For invertebrates, they have evolved a wide range of structures and mechanisms to perform the functions that a backbone serves in vertebrates. Invertebrates have various forms of exoskeletons, hydrostatic skeletons, and other support systems that allow them to move, support their bodies, and protect their internal organs without a backbone. In summary, whether an organism can live without a backbone depends on its classification within the animal kingdom. Vertebrates cannot live without a backbone, while invertebrates have evolved to thrive without one. read more >>

No, you can not live without a spinal column. ... In fact, to be a vertebrate, you must have a such a column from the spine in little fish to the huge vertebral column of a giraffe or a blue whale, the largest animal ever known to have lived.read more >>