Sea turtles, also called marine turtles, are reptiles of the order Testudines and of the suborder Cryptodira. They play an important role in ocean ecosystems by maintaining healthy seagrass beds and coral reefs. Sea turtles are going extinct, because they are slaughtered for their eggs, meat, skin, and shells, they also suffer from poaching and over-exploitation. Nearly all species of sea turtle are now classified as endangered. You can download and print the sea turtles coloring pages for free and share with your friends.