Brachiopods have black blood. Octopuses have a copper-based blood called hemocyanin that can absorb all colors except blue, which it reflects, hence making the octopus' blood appear blue.
Snails, spiders and octopi have something in common- they all have blue blood! We're not talking in the sense of royalty, these creatures literally have blue blood. So why is their blood blue and ours red?
BATON ROUGE – Green blood is one of the most unusual characteristics in the animal kingdom, but it's the hallmark of a group of lizards in New Guinea. Prasinohaema are green-blooded skinks, or a type of lizard.
Family Channichthyidae has fishes that do not contain hemoglobin pigment in their blood. Hence their blood is white. As Hemoglobin is important for carrying oxygen in the body, but in the habitat of these fishes, the amount of oxygen present in cold water makes them devoid of Hemoglobin.
Octopuses, lobsters, and horseshoe crabs use hemocyanin, which has copper instead of iron, and is blue instead of red—that's why these creatures bleed blue. Other related molecules are responsible for the violet blood of some marine worms, and the green blood of leeches.
When blood is exposed to oxygen, it becomes oxidized and turns dark brown or blackish, similar to the color of coffee grounds.
Indeed, most mammal, fish, reptile, amphibian, and bird blood is red because of hemoglobin, whose protein is made of hemes, or iron-containing molecules that fuse with oxygen.
Purple Blood
Peanut worms, duck leeches, and bristle worms, all of which live in the ocean, use the protein hemerythrin to carry oxygen in the blood. Without oxygen, their blood is clear in color. When it carries oxygen, it turns purple.
One group of segmented marine worms has pink blood. This is because the molecule that carries the oxygen is a type of blood pigment, known as hemerythrin, which is described as pink or purple.
The short answer is ants have something similar to blood, but scientists call it “haemolymph”. It is yellowish or greenish. In vertebrates (animals with backbones such as humans, cats, dogs, snakes, birds and frogs) blood's main job is to move important things around the body.
To date, there's only one species that has been called 'biologically immortal': the jellyfish Turritopsis dohrnii. These small, transparent animals hang out in oceans around the world and can turn back time by reverting to an earlier stage of their life cycle.
Animals that don't need sleep (bullfrogs and dolphins) Animals that don't need rebound sleep after using up all their energy (bees) Animals that show harmful side effects from sleep deprivation (humans)
Moray, Conger and Snake eels mostly live in coastal waters, on rocky coasts or in coral reefs. Heat-labile toxins are present in the blood.
Octopuses have blue blood, three hearts and a doughnut-shaped brain. But these aren't even the most unusual things about them! Known for their otherworldly look and remarkable intelligence, octopuses continue to reveal astonishing qualities, abilities and behaviour.
Earthworms and leeches have green blood. The color comes from an iron substance called chlorocruorin. Many invertebrates, such as starfish, have clear or yellowish blood.
It's red because of the red blood cells (hemoglobin). Blood does change color somewhat as oxygen is absorbed and replenished. But it doesn't change from red to blue. It changes from red to dark red.
Interestingly enough, in our versatile animal kingdom, there are multiple animals that are born blind. One of them is the eyeless shrimp, which only has light perception. Another one is the star-nosed mole, the fastest-eating mammal in the world, who uses touch as their main sensory organ.
Sea cucumbers have yellow blood due to a high concentration of a yellow vanadium-based pigment called vanabin. Some members of the phylum Annelida (segmented worms and leeches) have a greenish respiratory pigment called chlorocruorin.
Can you guess what animals might have blue blood? Lobsters, crabs, pillbugs, shrimp, octopus, crayfish, scallops, barnacles, snails, small worms (except earthworms), clams, squid, slugs, mussels, horseshoe crabs, most spiders. None of these animals have backbones. Some of these animals are Mollusks, like the snails.
Earthworms are invertebrates, which means they do not have a backbone. In fact, they don't have any kind of bones, legs, eyes, or teeth.
Snails have more teeth than any animal.
A snail's mouth is no larger than the head of a pin, but can have over 25,000 teeth (but these aren't like regular teeth, they are on its tongue).
Hippopotamus gives the milk of blue color. Blue milk, also known as Bantha milk, was a rich blue-colored milk produced by female banthas.
Dragon's blood is a surprising red made from the resin of the Daemonorops draco plant and other rattan palms. This exotic red was used by the early Greeks, Romans and Arabs in art and medicine. Medieval encyclopedias claimed it to be the blood of actual elephants and dragons who had died in mortal combat!
Kermit the Frog used to sing that it wasn't easy being green, but that isn't the case for some real-life lizards. They apparently find being green so easy that even their blood is green. A study published Tuesday suggests seems that this lime-green blood has evolved independently several times in lizards.
Fish have blood and it is red in color. fish have a red pigment called hemoglobin that is responsible for the red color. Similar to humans, fish have a circulatory system with blood and a heart that acts as a pump. A fish's whole body weight is around 10% of its blood.