Adaptation Characteristics that organisms acquire that assist them in survival.
Survival of the Fittest The concept that those organisms that have the best adaptations will be the ones that live and reproduce.
Natural Selection The concept that those organisms that fit the environment the best will live to reproduce.
Adaptations Adaptations are the specific characteristics organisms have to help them survive. The organisms of the Galapagos Islands are highly adapted. See how many adaptations for survival you can remember at the end of this presentation.
The Galapagos is one of a few small spaces left on earth that is minimally affected by man.
Comparison of Iguanas It is difficult to determine why marine iguanas are so different than their cousins the green land iguanas. We hypothesize that the unique environment of the Galapagos Islands favored the traits of the marine iguana and the environment of South America favored the traits of the green iguanas.
You are about to copy a chart The chart you are going to copy will ask you to compare and contrast the green iguanas of the mainland and the marine iguanas of the Galapagos. A series of slides you are about to see will help you. You will use your chart to explain how these two iguana species became so different.
Please write this chart in your notes to list unique characteristics and habits of each type of iguana. Marine Iguana Characteristics and Behaviors Green Iguana Characteristics and Behaviors
Don’t Forget The appearance of the green iguana and marine iguana should be included in your set of observations.(color, claws, shape, size…) Add the observations you make while viewing the next slides to your chart.
Marine Iguanas Feed Mainly on algae under the ocean.