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Natural selection


The brown anole (Anolis sagrei) is a type of lizard that is native to islands in the Caribbean Sea. These lizards can live in a variety of habitats. Ground-dwelling populations of brown anoles live on lower parts of tree trunks and on the ground. These populations have long legs that help with jumping. Other anole lizard populations live higher up on tree trunks. These populations have short legs that help with perching.
Curly-tailed lizards (Leiocephalus carinatus) are a predator of the brown anole. A group of researchers introduced these predatory lizards into the habitat of certain ground-dwelling brown anoles. To avoid these predators, many individuals from the ground-dwelling populations of brown anoles began to move higher into trees.
Based on the information above, which of the following is the best prediction for what will happen over time to the populations of ground-dwelling brown anoles in areas where curly-tailed lizards were introduced?
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