"Do fish sleep? Certainly they do. They also change sex, build nests, and make sounds! Judith Weis's book is informative and accessible. I recommend it to readers of all ages."---Francis Juanes, University of Massachusetts<BR><BR>"Do Fish Sleep? must have every Ichthyology 101 final exam question imaginable, but with much more thorough and engaging answers!"---Charles Simenstad, University of Washington<BR><BR>"Fish, fish, and more fish---from minnows to sharks, mountain streams to ocean bottoms, and teeth to tail fins, if it's a fish question, it's answered here."---John Waldman, Author of Heartbeats in the Muck: The History, Sea Life, and Environment of New York Harbor<BR><BR>"Judith Weis's clearly written book will interest a wide range of readers, from educators to naturally curious young people."---Howard Reisman, Long Island University<BR><BR>A fish's heft in water may vary, but these diverse aquatic animals certainly carry a lot of weight in our ecosystems and environment. From freshwater to ocean habitats Do Fish Sleep? offers a fascinating look at these deceptively simple creatures. This book is organized in an easy-to-read and accessible question-and-answer format, and filled with more than fifty-five photographs and over one hundred interesting facts from fish biology basics to the importance of preserving and restoring fish diversity and healthy populations. A captivating read for fish enthusiasts of all ages---naturalists, environmentalists, aquarists, scuba divers, and students---this is also the perfect primer for those just about to get their feet wet. Dive in!