Adelbert, it's not a separate species, it is just different colored, same as albinism (which also exist with lobsters). They are rare because their coloring makes them very visible and thus vulnerable to predators. For humans to catch one however is totally random.
Adelbert, it's not a separate species, it is just different colored, same as albinism (which also exist with lobsters). They are rare because their coloring makes them very visible and thus vulnerable to predators. For humans to catch one however is totally random.