Researchers examined every body vertebra in 13 Australian snakes and found five distinct regions

Recent studies reveal that snake spines are now categorized into five unique anatomical regions. Surprising findings indicate that snakes have a notably short neck, which reflects their ancestral lineage from lizards. Additionally, this research highlights a newly discovered middle thoracic region that has adapted for movement, enhancing their abilities to burrow, swim, and climb. Interestingly, snakes have evolved their skeletons structurally rather than simply after losing their limbs.