Green Sea Turtle
Green sea turtles are a keystone aquatic species because they help maintain the health of their ecosystems by consuming sea grass. When these turtles graze on sea grass, they actually increase the sea grasses’ overall nutrient content. Without green sea turtles and their beneficial environmental role, many species that share the same habitats could potentially become vulnerable, endangered, and even extinct. Sadly, green sea turtles themselves are considered endangered and despite preservation methods and more attention being drawn to their declining population, their numbers have not yet been able to stabilize.