Sea stars are well known for their ability to regenerate their arms. What''s less apparent is that they accomplish this task without a brain. This book focuses on the sea star''s simple nervous system, and it explores some of the interesting things a sea star does without a brain. Readers will be enthralled to learn that a sea star pushes its stomach outside of its body in order to consume its prey. It''s a no-brainer that young scientists will be fascinated with this learning experience.