What happens to a creature that doesn't have a brain? How does it survive? As it turns out, there are many animals that do without brains! This set tempts young readers with exciting facts about these animals who do things just a bit differently. Focusing on invertebrates from stinging jellyfish to regenerating sea stars, this set examines brainless animal life cycles and what features each animal has that help it survive. Features include: Awe-inspiring and high-interest facts about these unique animals will engage readers of all levels. Bright, full-color photographs will appeal especially to young readers. At-level language helps readers understand key scientific concepts.