The Blue Marlin
The Blue Whale
Blue bottle, Portuguese man-of-war
Blue Poison Arrow Frog
Blue Crab Boulevard
Blue Poison Dart Frog
Linckia laevigata (sometimes called the "blue Linckia" or Blue Sea Star) is a species of sea star in the shallow waters of tropical Indo-Pacific.
The Southern Crowned Pigeon, Goura scheepmakeri, is a large, approximately 75 cm (30 in) long, terrestrial pigeon confined to southern lowland forests of New Guinea. It has a bluish-grey plumage with elaborate blue lacy crests, red iris and very deep
The Ulysses butterfly (Papilio ulysses), also known as the Blue Mountain Butterfly, or the Blue Mountain Swallowtail is a large Australian swallowtail. The Ulysses butterfly has a wingspan of about 14 cm (5.5 inches). It lives in northeastern Australia
The Maltese tiger, or blue tiger, is a suspected coloration morph of a tiger, reported mostly from the Fujian Province of China. It is said to have bluish fur with dark grey stripes
Agama sinaita is an agamid lizard. It is common in deserts around the Red sea. The length of the lizard is up to 25 cm
The blue mussel, Mytilus edulis, is a medium-sized edible marine bivalve mollusc in the family Mytilidae.
Paracanthurus hepatus has a royal blue body, yellow tail, and black 'palette' design. The lower body is yellow in the west-central Indian Ocean. It grows to 31 cm (12.25 in.). The species' range is broad, but it is nowhere common.
Around one in two million lobsters is blue. A research study conducted by Professor Ronald Christensen at the University of Connecticut discovered that a genetic defect causes a blue lobster to produce an excessive amount of protein.
The dwarf gourami, Colisa lalia, has an almost translucent blue color, with vertical red to dark orange stripes. In its native range it is dried for food, and it is also kept as an aquarium fish. It has become highly popular for aquaria.
The humphead wrasse (Cheilinus undulatus) is a wrasse that is mainly found in coral reefs in the Indo-Pacific region. It is also known as the Mori wrasse, Napoleon wrasse, Napoleonfish
Hypselodoris infucata is a species of colorful sea slug or dorid nudibranch, a marine opisthobranch gastropod mollusk in the family Chromodorididae
Halmus chalybeus, commonly known as the steelblue ladybird, is a species of ladybird (the beetle family Coccinellidae). It has an iridescent blue/green colouration and is a predator of other insects.
The Greater Blue-ringed Octopus (Hapalochlaena lunulata) is one of three (or perhaps four) species of blue-ringed octopuses. Unlike its southern brethren, the Blue-lined and Southern Blue-ringed octopuses that are found only in Australian waters
British Shorthairs come in many colours. For many years, the more popular blue variant was common enough to have a breed name of its own: the "British Blue." It remains one of the most popular colours in the breed, though there is now a large variety
The Lear's Macaw (Anodorhynchus leari), also known as the Indigo Macaw, is a rare Brazilian parrot with a highly restricted range. It is metallic blue with a faint, often barely visible, tinge of green, and a yellow patch of skin at the base of the h
The Indian Peafowl, Pavo cristatus (from Latin Pavo, peafowl; cristatus, crested), also known as the Common Peafowl or the Blue Peafowl, is one of two species of bird in the genus Pavo of the Phasianidae family known as peafowl. Found mainly on the I
Maylandia callainos (sometimes referred to as Cobalt Zebra, Cobalt Blue Mbuna or Cobalt Blue African Cichlid) is a species of fish in the Cichlidae family. The correct name of its genus is disputed, with some using Maylandia and others Metriaclima. I
The Blue Dacnis or Turquoise Honeycreeper, Dacnis cayana, is a small passerine bird. This member of the tanager family is found from Nicaragua to Panama, on Trinidad, and in South America south to Bolivia and northern Argentina. It is widespread an
The Blue Dasher (Pachydiplax longipennis) is a dragonfly of the skimmer family. It is common and widely distributed in the United States.
The Purple Honeycreeper, Cyanerpes caeruleus, is a small bird in the tanager family. It is found in the tropical New World from Colombia and Venezuela south to Brazil, and on Trinidad.
The Western Bluebird (Sialia mexicana) is a medium-sized thrush. Their breeding habitat is semi-open country across western North America, but not desert areas.
A blue groper is a member of two similar species of fish found in the coastal waters of southern Australia, distinguished by the bright blue colouring of the adult males.