Observatory: Crab Species Thought to Use Color to Discern Food

[unable to retrieve full-text content]Two species appear to have eyes sensitive to ultraviolet light, which could help them tell the difference between glowing blue plankton (food) and green coral (poison), researchers say.

Source: http://www.nytimes.com/2012/09/11/science/crab-species-thought-to-use-color-to-discern-food.html?partner=rss&emc=rss

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