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El Nuevo Día
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A team of scientists, including Puerto Rican biologist Manuel Leal, discovered that Anolis lizards use the bagpipes on their necks to increase contrast against their surroundings to visually communicate with their species.
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Dr. Manuel Leal and collegueas from Duke University studied how the Puerto Rican lizard (Anolis cristatellus) has adapted to the weather in Florida. They estimated that it took approximately 35 evolutive generations to adjust to colder temperatures.
ScienceDaily (Nov. 26, 2012) — One tropical lizard's tolerance to cold is stiffer than scientists had suspected. A new study shows that the Puerto Rican lizard Anolis cristatellus has adapted to the cooler winters of Miami. The results also suggest that this lizard may be able to tolerate temperature variations caused by climate change.