The image of salmon swimming upriver to reach their spawning location is amazing. What's more incredible is that only about 10 percent of salmon offspring live to the second stage of the fish's life cycle! In addition, they sometimes develop a hump or large teeth before reproducing. These bizarre facts keep readers turning pages in this colorful volume. The main content covers important science information about life cycles, habitats, and animal groups, and Fun Fact boxes enhance the reading experience with more strange tidbits and explanation. Full-color photographs bring readers close to the weird life of the salmon!