Fish can recognize a face based on UV pattern alone

Thursday, February 25, 2010 - 21:42 in Biology & Nature

Two species of damselfish may look identical—not to mention drab—to the human eye. But that's because, in comparison to the fish, all of us are essentially colorblind. A new study published online on February 25th in Current Biology, a Cell Press publication, reveals that the fish can easily tell one species from another based entirely on the shape of the ultraviolet (UV) patterns on their faces.

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