more evolution

This week in science we learned more about evolution. We learned about the iguanas in the Galapagos. We learned how they got there through gene flow. Such things as water wind and birds brought things to the islands. Also, I think that if the water ever dropped far enough down to creat a land bridge, many orgamisms could have travled across. Friday we had a test that covered everything we learned. I think everyone should have done decent if they were able to grasp the idea of evolution. I am pretty sure I did.