Invertebrates vs. Vertebrates

In the vast realm of the animal kingdom, organisms are categorized into two primary groups: invertebrates and vertebrates. This fundamental division hinges on the presence or absence of a backbone. Invertebrates, representing the majority of animal species, lack a spinal column, encompassing creatures ranging from insects and mollusks to jellyfish and worms. Conversely, vertebrates possess a backbone, offering structural support and protection for the spinal cord. This dichotomy not only underscores the diversity of life forms but also highlights the evolutionary adaptations that have shaped the astonishing variety of species inhabiting our planet.