 We're the smartest creatures on the planet of all the mammals. We have the largest brains We can fly like birds and big metal machines. We can talk to each other through the air with little things we carry in our pockets We build huge towers of glass and turn forests into great cities where once there was only trees But sometimes we forget how much we need for us to because no matter how smart we are We can't make our own oxygen We can't make our own water Forests store water and give us 75% of the water we drink. They give us oxygen medicine, energy, food and stuff to build our homes. If we protect them, we'll have a renewable source of all these things Maybe we'll figure it out We're the smartest creatures on the planet