About one out of every two million lobsters may come up in a trap colored blue. The chances of finding a yellow lobster are even less; a yellow lobster is only seen once in 30 million lobsters.

However, the rarest lobster is a white lobster. The chance of seeing a white lobster is only one in 100 million. There are even lobsters that are two different colors, one on each half of their bodies.

These bi-colored lobsters are typically hermaphrodites bearing a male sex organ on one side of their body and a female sex organ on the other side. Lobstermen have also hauled up calico lobsters, orange lobsters, even bright red ones.

Human beings come in different colors for much the same reason that lobsters do – the predominance of certain pigments. A pigment called melanin determines human skin color while lobster shells contain the pigment 'astaxanthin'. This pigment is naturally red, but when it binds with certain proteins it can appear blue or yellow. White lobsters are albinos and lack any pigments in their shells.

The normal coloring of a lobster which is a greenish blue to blackish brown, helps it blend in to its environment, protecting it from predators. A yellow lobster is easy to see in dark water along the bottom on the ocean.

If they are continually mass harvested, and ocean temperatures continue to rise at their current rate, the wild lobster population could be deeply impacted by 2040.

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