Why can we see through some animals?

Creature Cast is one of my favorite blogs — a series of charmingly animated videos about surprising, oft-overlooked details in the animal kingdom. Better yet, the videos are often made by students who work with professor Casey Dunn's evolution and diversity laboratory at Brown University.

In this entry, Riley Thompson, from the College of the Atlantic, explains how transparency — the biological kind — really works. Why can we see through some animals and not others?

See more videos at Creature Cast


  1. “…but suggests a more complex, active process–that their bodies must be constantly working to keep them transparent…” 

    That doesn’t really answer anything, for me, though the rest of the video did a good job.

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