Only 1 in 2 million specimens are blue and it is due to a genetic abnormality.
Lobsters can be found in the eastern Atlantic Ocean, in the northwestern Black Sea, and in parts of the Mediterranean Sea. It lives in rocky shelters and has 10 legs, located on the thorax. It feeds on worms, bivalves and dead fish, which it usually fishes at night.
Specifically, these very rare electric blue specimens are like this, because they have an excess of crustocyanin, a protein with which they get that color. The problem? They cannot camouflage themselves on the seabed as well as lobsters often do with their traditional greenish-brown color. And they are an easier target for networks, social or fishermen.
Despite the fact that these types of lobsters are very rare to find, they can easily occur in captive conditions, depending on the type of food that they are given.
But it's not the rarest lobster out there! If you've been impressed by this fabulous blue lobster, check out these two: the orange and the albino. Of the first, we can find 1 in 10 million and, of the second, 1 in 100 million.
And if it is crustaceans, some species of crab (Callinectes sapidus) and crayfish (cherax destructor or cherax quadricarinatus) can also have a bluish color as you can see in this photograph.