Sea turtles have been on Earth for more than 100 million years, since the time of dinosaurs. Sea turtles help balance food webs and keep nutrients cycling in ocean ecosystems. However, sea turtles are in danger, and the greatest threats come from human activity. Turtles get caught in fishing nets or entangled in marine debris. They are being hunted, their habitats are being destroyed, and they are even colliding with boats. In this video, learn how governments, conservation organizations, and communities across the globe are working together to protect these key marine reptiles.