Answer:
The dewlaps will become light colored (provide contrast to the dark or heavy forests).
Explanation:
Anoles are the small-sized lizards which are considered the reptiles and these reptiles have a hanging colored skin from the throat called the dewlaps.
The dewlaps occur in many different colors and size depending on the species which is used for showing either aggressiveness or to attract the female partners.
If an anole with dark dewlap will colonize the densely forested area then the dark color of the dewlap will not be favored by the dark environment of the forest and the will lead to decrease in the darkness of the dewlap and will become lighter colored which could be easily visible.
Thus, natural selection will favor light color of dewlap.
Overtime the dark dewlaps of the anoles will : Become lighter in color
The heavily forested island will have very little sunlight actually penetrating through its thick vegetation therefore beneath the vegetation would be dark just like the dark dewlaps.
For the dewalps of the anoles to be visible as a warning sign to intruders or as a sign to attract a sex partners it has to become lighter in contrast to the dark heavily forested island, due to law of natural selection
Hence we can conclude that overtime the dark dewlaps of the anoles will : Become lighter in color.
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