There are always more fish in the sea, right? While that idiom is popular, it doesn't reflect the current state of Earth's oceans. Humans have greatly overfished many bodies of water, leading to changes in ecosystems and environmental disturbances. Readers learn about the delicate balance of marine habitats and how overfishing can cause huge issues. Including a graphic organizer and fact boxes, this book explores the issue of overfishing, complete with age-appropriate photographs. Readers are encouraged to think about what can be done to save marine habitats--for good.