Pictures: New Purple Crab Species Found

image via National Geographic

Pictures: New Purple Crab Species Found.

One of the commenters (cfletch11) offered a suggestion as to the purpose the color of this beautiful crab:

In relation to the colour of the crab, when I was in Vanuatu recently and observing some coconut crabs, our local guide commented on why the crabs had various colours, he said the reason why there was different coloured coconut crabs was down to diet, he said the locals would never eat a crab that was purple/blue in appearance because it was mildly poisonous…..maybe this is the reason for their appearance