How do you know when to stop squeezing?

If you are a snake. And, what causes some island dwelling boas to be smaller than the mainland variety?

If you want to know the answer to these two burning questions, click here and visit Smithsonian's Surprising Science where I'll be guest blogging for a couple of weeks. For the first question, there is some new and very cool research. For the second question, some older (but closely related) research.

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