Unknown Story
Updated: 12/19/2019
Unknown Story
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Storyboard Text

  • The brown anole is a type of lizard that lives on the islands of Turks and Caicos. It spends most of its time on the ground but escapes to the trees to avoid predators.
  • When Hurricanes Irma and Maria hit the islands, most of the lizards were blown out to sea. Only some--the ones that were able to hold on to the trees--survived.
  • When scientists measured the survivors, they found that the average toepad size was 6-9% bigger than the average size before the hurricane. Toepads look like this.
  • The scientists wondered why, so they did an experiment exposing the anoles to high winds. When exposed to high winds, the anoles hold on with their front legs, like this.
  • As the winds get stronger and stronger, toepad size may affect the ability of the anole to hang on.
  • Scientists have not yet determined whether the trait of toepad size is heritable. What could they look at to determine inheritance?
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