Why Dont Jellyfish Have Brains

Jellyfish are some of the creepiest creatures out there. They're about 95 percent water and basically evaporate when they wash up on a beach, and, they don't have brains! This absorbing book details how these animals survive without this important organ and other weird facts about the invertebrate world. Even more fascinating than the freaky facts are the eye-catching images that illustrate each crucial concept. Sidebars and graphic organizers present more valuable information.

This title provides a fun and informative look at brains-insect brains, bird brains, dog brains, monkey brains, and our brains-and how they have each adapted to particular survival needs. This complex subject is made not only understandable but fascinating, and sometimes even funny!

Jellyfish are the often transparent, graceful creatures that float beautifully across the sea. Readers can try, but they're not going to find a brain in any jellyfish. They don't have spinal cords or bones either. This book explores how jellyfish survive and the parts they have that have allowed them to spread to oceans all over the world. With full-color pictures and amusing language, this book will engage the budding marine enthusiast and avid beach-goer.

Meet the jellyfish! Learn about how this strange sea creature lives without blood or a brain. Elementary-aged readers will discover jellyfish that can glow in the dark. Full color images and clear explanations highlight the habitat, diet, and lifestyle of these fascinating ocean animals. A Japanese folktale explains why jellyfish have squishy bodies.

Describes the different kinds of brains that animals have and how those brains are related to the skills and behavior exhibited by the animals.

Discusses why the jellyfish population has exploded in recent years and why their dominance is indicative of a declining ocean ecosystem.

Jellyfish don’t have eyes. They don’t have brains, either. So how do they catch food and stay safe from enemies? The answers are just some of the fascinating facts children will discover as they enter the weird and watery world of these gooey sea creatures. In Gooey Jellyfish, large, colorful photos and clear, grade-appropriate text will engage emergent readers as they learn about the natural habitat, physical characteristics, diet, and behavior of these unusual and unique underwater invertebrates.

You may know that some animals play like they're dead to avoid predators. Did you know that one animal mimics the sound of the baby of its prey? Some animals are really tricky!

Some of the yuckiest animals are crawling right outside your door. This book explores the gross animals that call your yard home. Engaging facts accompanied by dynamic full-color photographs will keep any reader’s interest from cover to cover.

An introduction to these bizarre and beautiful creatures of the sea, filled with color photos and illustrations: “Fascinating.”—Boing Boing Jellyfish are the oldest multi-organed life form on the planet, having inhabited the ocean for more than five hundred million years. With their undulating umbrella-shaped bells and sprawling tentacles, they are compelling and gorgeous, strange and dangerous. In many places they’re also vastly increasing in number, and these population blooms may be an ominous indicator of the rising temperatures and toxicity of the oceans. Jellyfish presents these aquarium favorites in all their glory. Fifty unique species, from the purple people eater to black sea nettles, are presented in stunning photos along with the most current scientific information on their anatomy, history, distribution, position in the water, and environmental status. Foremost jellyfish expert Lisa-ann Gershwin provides an insightful look at the natural history and biology of each of these spellbinding creatures, plus a timely take on their place in the rapidly changing and deteriorating condition of the oceans. Learn about immortal jellyfish who live and die and live again—as well as those who camouflage themselves amid sea grasses and shells, hiding in plain sight. Discover the jellyfish that’s the world’s most venomous animal, and the jellyfish that helped scientists win the Nobel Prize. They’re all here and more in this delightful volume. “A thorough coverage of jellyfish history, biology and ecology. Gershwin, a marine biologist who has discovered over 200 new species of jellyfish, does an excellent job of combining a compelling narrative of 50 different jellyfish with luscious, I-can’t-believe-they’re-real photos.”—Boing Boing