Fishes live all over the world in both fresh and saltwater and in tropical, temperate, or polar habitats. Some fishes have bones while others have cartilage skeletons. Sizes vary from tiny goldfish to huge great white sharks, with all kinds of sizes in between. From flat bottom-dwelling to torpedo fast-swimming, their body shapes match their needs. Some fishes, like flounders and seahorses, even have body shapes to camouflage themselves. Colors can range from grays and browns to bright reds, yellows, or blues. Explore the similarities and differences in this latest addition to the Compare and Contrast Series!