Lobster that appears once in a blue moon

A blue lobster at Oceanopolis, an aquarium in Brest, in the west of France. Scientists say this specimen is extremely rare, as only one out of two million to three million lobsters is blue in colour. The colour is due to a genetic anomaly that causes an excess of crustacyanine, the blue pigment.

A version of this article appeared in the print edition of The Straits Times on April 20, 2017, with the headline 'Lobster that appears once in a blue moon'. Print Edition | Subscribe