![This Caranchid squid, about 4 inches across, uses transparency to hide from potential predators. Open water divers can more easily observe these creatures with polarizing filters. Compare the polarized and unpolarized images to one another. /](cranchid_unpolarized_600.jpg)
This Caranchid squid, about four-inches across, uses transparency to hide from potential predators. Open-water divers can more easily observe these creatures with polarizing filters. Compare the polarized and unpolarized images to one another. Images courtesy Edie Widder.
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