It’s been reported that blue lobsters are one in a million. That’s not true – the rare genetic mutation of the American Lobster appears in just one out of TWO million crustaceans. It also makes them look WAY cool!
Affected lobsters to produce an overabundance of a certain protein that reacts to form crustacyanin, expressed in the lobsters shell as a vivid blue tint. This doesn’t help the lobster much – contrasting with your surroundings makes it easier for predators to find and eat you.

One of the largest of all fish and striking in appearance, the Blue Marlin displays blue pigments on its upper (dorsal) side to help camouflage it from smaller prey swimming above it. Blue Marlin females are usually heavier than males – sometimes MUCH heavier: the largest females can weight up to 4,000 pounds (1,800 kg) and run 13 feet (over 4 meters) from bill-tip to tail fin.

Now this is one elite eel. Full-grown adults are over a yard long and can live up to 20 years: not just a blue ribbon winner among eels, but a Blue Ribbon Eel itself! This relative of the famed and feared Moray Eel is a popular aquarium fish for advanced hobbyists owning very large salt-water tanks.

Exotic and deadly, the Blue-ringed Octopus takes fatal attraction to an entirely new level. This small, shy octopus is found in coastal waters of the Pacific Ocean and uses its paralyzing venom to subdue the small fish and shrimp which are its usual prey. Like many squids and octopi, the Blue-ringed Octopus has chromatophores in its skin that become much more vivid when the creature is alarmed or excited – and you’d better not be the cause!

Occasionally reported but never officially documented, the Blue or “Maltese” Tiger is said to be an exceedingly rare mutation of the South Chinese or Amur Tiger – themselves critically endangered.
Sometimes called Maltese Tigers after silver-gray cats found on the island of Malta, Blue Tigers display striped fur in white, black and misty gray, or at least they do in these artist’s conceptions.

Dinosaurs? Pshaw… the mighty Blue Whale is the largest animal to have ever lived – by far! Adults can grow up to 108 ft (33m) long and weigh as much as 180 metric tons (200 short tons), sometimes more. And, they’re really blue… well, shades of bluish gray to be exact. Once critically endangered, Blue Whales today number as many as 12,000. That may seem like a lot but before the advent of organized whaling in the 19th century it’s thought that the world’s oceans supported up to 240,000 – twenty times the number living today.