Darwin observed finches and tortoises in the galapagos. What characteristics did he observe in them? What did he deduce about them?
That they had evolved from Which they were on the mainland. He found that out by observing marine iguanas which swam in the ocean unlike mainland iguanas.
There behaviors as in what they eat and how they react to other Animals I think.. It's been a while since I've studied that.
I think there must be more to this story to answer this question. Please read me more of your homework.