Honken writes: A recent study by scientists at Duke University has found that transparent deep-sea octopuses turn red when exposed to blue light similar to what predators emit, allowing them to hide using both transparency and by absorbing the wavelengths of the blueish light emitted by deep-sea predators. The Register quickly made the not-so-obvious connection to Kindles and squid video playback, whereas Discovery News reports of slightly more useful yet exotic applications such as fishing nets that are invisible only to the species that it intends to catch.
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