A group of plants, animals and other living things that live in the same place and help each other to survive.

A turtle that lives in tropical waters. It has a brown shell and got it's name because of the layer of green fat under it's skin. Green turtles used to be hunted for food and made into soup! Now, a lot more effort is made to preserve these beautiful creatures since there are not many of them left. Green turtles help maintain balance in the ocean ecosystem by eating the sea grass beds and keeping them at a healthy thickness.