Sea stars, or starfish, have captivated researchers with their unique body structure. A recent genetic study led by Laurent Formery challenges our previous understanding of sea stars, revealing a groundbreaking discovery: they are essentially walking heads without torsos or tails. Belonging to the echinoderm group, sea stars have a distinct body plan with five equal sections, deviating from the typical bilateral symmetry seen in most animals. The study, enabled by advanced genetic sequencing and microcomputed tomography scanning, unveils genes associated with head development throughout the body, prompting a reassessment of our comprehension of these fascinating marine creatures and shedding light on their evolutionary history. The study not only broadens our knowledge of Earth’s life evolution but also prompts questions about echinoderms’ unique body plans and their common ancestry with other animals. This genetic exploration contributes to the broader field of biology, deepening our understanding of sea stars. By revealing the intricacies of ocean ecosystems, the research holds potential for ecological and biomedical advancements, taking us on a journey to comprehend the complexities of marine life and its applications in various scientific fields.