Comparative Vertebrate Anatomy -

The magic happens in how these parts are modified. By comparing the skeletons, muscles, and organs of different species, scientists can trace the lineage of life back millions of years. 2. Homology vs. Analogy

At its core, vertebrate anatomy is about patterns. All vertebrates—animals with backbones—share a common structural plan: a dorsal hollow nerve cord, a notochord, and pharyngeal slits at some stage of development. Comparative Vertebrate Anatomy