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The gecko used to be a rather simplistic animal but after millions of years it evolved in many ways. These new features include a darker skin tone which occurs because of global warming. Another way climate change has affected the gecko is the adaptation of gills. As sea levels rised, geckos developed gills over millions of years so they could hunt for food underwater. As a result of this, the tail of the gecko has also evolved to allow for easier swimming. The gecko can also hide in caves or reefs and use its tail to lure prey. It does this by sticking its tail up slightly for prey to see, and the prey thinks that the tail is another fish so there might be food there. The gecko uses its new claws to successfully capture the fish.