Sky blue, ocean blue, blueberries, human eyes, despite seeing blue all around us, blue is actually
the least common color in nature. There are only a couple of animals that are considered true blue,
like the olive wing butterfly that has blue stripes on their wings, the blue in their wings is actually
blue pigment. Most animals appear blue due to selective reflection (how the light is filtered) and
iridescence (due to refraction of light waves). Whether they are true blue or look blue, let’s take a
look at 10 interesting blue animals pictures to amaze you.
The peacock is known for its beautiful fan of feathers. There are three types of peacocks with the
Indian peacock being the one that has a blue body with feathers that are multi-colored with blue
spots. The male Indian peacocks are the ones that are blue with the females being a light brown to
blend into the environment. Peacocks can be found all over India and because of their vibrant colors
and are favourites at many zoos across the world.
There are several kinds of lizards that are blue. A common feature of lizards is that they change
colors to appear blue during certain times like mating season. The red-headed agamas lizards are
typically brown, but their head turns red and their body blue to attract a mate. The blue iguana is
another lizard that looks blue. His coloration has two purposes, one is to blend in with the rock
formations and the second is to attract a mate with the males changing to a deeper blue during
3. Blue Poison Dart Frog
Their skin contains toxins that are poisonous and can be fatal. Their blue coloring serves as a warning
to other predators of their poisonous threat. They live in only a few areas of the rainforests in north
Brazil and Suriname. They get their Dart Frog name from the hunters that would capture the frogs
and dip the tips of their darts in the poison to create a lethal weapon.
4. Spix’s Macaw
This is one species of macaws that has vibrant blue feathers. In 2000, this bird was declared
extinct in the wild and there are only a few (177) held in captivity. The movie Rio brought attention
to the species as well as other parrots that may be in danger. When you think of a parrot, the blue
and gold macaw may be the parrot you picture with blue wings, yellow belly and a green tuft on its
head. They are more common and can be kept as companion pets.
5. Royal Blue Tang
These fish are sometimes referred to as surgeonfish and are known for their deep blue bodies with
yellow tail fin and yellow at the tip of their fins. They have a distinct black design on their side that
people say looks like the number six. The average size of the blue tang is the size of an adult’s hand
but can range from 4-14 inches in length.
6. Blue Damselfish
The aquariums at the dentist office are always so colorful. Often the blue fish chosen now are the
Royal Blue Tang, like Dory, but the blue damselfish is actually the most popular blue aquarium fish.
Owners find it entertaining to watch them try to take-on much bigger fish, especially since they are
only typically 3-4 inches long!
7. Blue Jay
These common backyard birds have beautiful blue feathers in various shades of blue. Blue jays feed
on nuts and insects and help the ecosystem by spreading acorns to grow more oak trees. If you are
trying to lure them to your backyard try a feeder on a pole with suet, peanut butter and sunflower
8. Betta Fish
Betta fish make great pets and you can observe the beautiful blue fins anytime. Betta’s have flowing
fins that are quite impressive. They are sometimes called Siamese fighting fish based on their origin.
Betta’s are from Thailand and kids would gather these fish and put them together and watch them
A chameleon has the reputation of changing colors. They can’t match perfectly anything they land
on but they can appear to change color. Due to changes in hormones and nerve impulses the
chameleon is able to alter the layer of skin that has melanin and create a look of a different color,
including blue. One of the reasons chameleons change colors is to adjust their temperatures,
drawing in more sun to warm them up or change color to cool off.
10. Blue Glaucus
These tiny sea slugs are only about an inch long and have flowing appendages all over it. They have a
trick of doing the back float by holding air in their stomach with their bright blue belly up to help
camouflage it from flying prey. Blue glaucus blend in nicely with the ocean waters.