(Answer) Komodo dragons are examples of insular gigantism – meaning they evolved to be large because?

Quiz Question: Komodo dragons are examples of insular gigantism – meaning they evolved to be large because…

The given options are:

  • Of their island habitat
  • They get more sun that way
  • It helps them float

Correct Answer: Of their island habitat

Info: The island effect, or Foster’s rule, suggests that typically small creatures—including reptiles like the Komodo’s ancestors—evolve to be large when confined to islands, where predators are few. And vice versa: For example, the now-extinct elephants that inhabited Indonesia in prehistory evolved to be quite small, since the islands didn’t offer enough veggies to go around for full-size pachyderms.

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