Compléter AnimalsVersion en ligne Animals par Luz Álvarez Herrero 1 invertebrates vertebrates head exoskeleton shell skeleton body soft skeleton The name for animals with a spine is . They have a inside them . Most vertebrates have a , a torso , limbs and a tail . The name for animals than don´t have a spine is . They don´t have a inside them . Some invertebrates have a to protect their bodies , for example , snails . Some invertebrates have an . This is hard but it´s outside the body . For example , an ant . Some invertebrates don´t have any protection . They have a . For example , worms and caterpillars .