What blood is jellyfish?

Jellyfish are made up of 95% water. They have no brain, heart, bones, blood or eyes.
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Do jellyfish have no hearts blood or brains?

Jellyfish have no brain!

They also have no heart, bones or blood and are around 95% water! So how do they function without a brain or central nervous system? They have a basic set of nerves at the base of their tentacles which can detect touch, temperature, salinity etc.
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What is the blood red jellyfish called?

Lampocteis is a monotypic genus of comb jellies, the only genus in family Lampoctenidae. The sole species in this new genus is Lampocteis cruentiventer, the bloodybelly comb jelly. This ctenophore was first collected in the Pacific Ocean off the coast of San Diego, California, in 1979. It was described in 2001.
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Do immortal jellyfish have blood?

Turritopsis Dohrnii most commonly known as the immortal jellyfish are very small simple bodied marine invertebrates. The jellyfish are referred to as simple bodied invertebrates because they have no brain, blood, or other organs.
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What kills jellyfish?

Among the predators of the jellyfish, the following have been identified: ocean sunfish, grey triggerfish, turtles (especially the leatherback sea turtle), some seabirds (such as the fulmars), the whale shark, some crabs (such as the arrow and hermit crabs), some whales (such as the humpbacks).
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Stung by the STINGING NETTLE!

Do jellyfish have blood?

Lacking brains, blood, or even hearts, jellyfish are pretty simple critters. They are composed of three layers: an outer layer, called the epidermis; a middle layer made of a thick, elastic, jelly-like substance called mesoglea; and an inner layer, called the gastrodermis.
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Do jellyfish feel pain?

Do jellyfish feel pain? Jellyfish do not have organs or bones and only have a "basic network of neurons," according to Ocean Conservancy, an environmental non-profit. As a result, the animals don't feel pain in the same way humans do.
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Which animal has never been killed?

Turritopsis dohrnii — otherwise known as the immortal jellyfish — is a tiny creature smaller than the nail on your pinky finger. It possesses an extraordinary ability to revert its cells back to their earliest form, essentially resetting its life cycle.
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Can a jellyfish live forever?

Theoretically, this process can go on indefinitely, effectively rendering the jellyfish biologically immortal, although in practice individuals can still die. In nature, most Turritopsis dohrnii are likely to succumb to predation or disease in the medusa stage without reverting to the polyp form.
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Are jellyfish aware they are alive?

Some box jellies even have courtship and mating behavior. Do these behaviors mean jellyfish are self-aware? They don't have any type of 'centralized' nervous system. As far as anyone knows the two nerve nets and rhopalia do all the heavy lifting as far as 'thinking' goes.
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Is jellyfish edible?

Dehydrated and pickled jellyfish is considered a delicacy in several Asian countries, including China, Korea, Vietnam, and Japan. Dehydrated jellyfish can be prepared for eating by soaking it in water for several hours to rehydrate it, and then parboiling, rinsing and slicing it.
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What is the deadliest jellyfish in the world?

The Australian box jellyfish is considered the most venomous marine animal. They may not look dangerous, but the sting from a box jellyfish could be enough to send you to Davy Jones's locker-a watery grave, that is.
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What is the gender of a jellyfish?

Jellyfish are usually either male or female (with occasional hermaphrodites). In most cases, adults release sperm and eggs into the surrounding water, where the unprotected eggs are fertilized and develop into larvae.
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Does a jellyfish have 13 hearts?

At the base of a jellyfish's tentacles are a basic set of nerves that can detect touch and temperature.
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Do jellyfish have 9 brains?

Jellyfish don't have brains

Instead of brains, they have nerve nets, which sense changes in the animal's environment and coordinate its responses.
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Are jellyfish intelligent?

Though jellyfish do not have a brain, they are incredibly smart and adaptable. For more than 500 million years, they've been bobbing around almost all the world's oceans, both close to the water surface as well as in depths of up 700 meters. The jellyfish is the world's oldest animal.
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What is the oldest jellyfish alive today?

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.
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Can jellyfish live for 1000 years?

Turritopsis dohrnii is called the immortal jellyfish because it can potentially live forever. Jellyfish start life as larvae before establishing themselves on the seafloor and transforming into polyps. These polyps then produce free-swimming medusas, or jellyfish.
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What jellyfish turns back into a baby?

The hydrozoan Turritopsis dohrnii, an animal about 4.5 millimetres wide and tall (likely making it smaller than the nail on your little finger), can actually reverse its life cycle. It has been dubbed the immortal jellyfish.
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What animal doesn't age?

Turritopsis dohrnii, or Turritopsis nutricula, is a small (5 millimeters (0.20 in)) species of jellyfish that uses transdifferentiation to replenish cells after sexual reproduction. This cycle can repeat indefinitely, potentially rendering it biologically immortal.
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Which animal cannot be destroyed?

Tardigrades are tiny, cute and virtually indestructible. The microscopic animals are able to survive in a pot of boiling water, at the bottom of a deep-sea trench or even in the cold, dark vacuum of space.
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Which animal has 25,000 teeth?

Snails: Even though their mouths are no larger than the head of a pin, they can have over 25,000 teeth over a lifetime – which are located on the tongue and continually lost and replaced like a shark!
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Does a jellyfish sleep?

"It may not seem surprising that jellyfish sleep—after all, mammals sleep, and other invertebrates such as worms and fruit flies sleep," says Ravi Nath, the paper's co-first author and a graduate student in the Sternberg laboratory. "But jellyfish are the most evolutionarily ancient animals known to sleep.
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What animals can't feel pain?

While mammals and birds possess the prerequisite neural architecture for phenomenal consciousness, it is concluded that fish lack these essential characteristics and hence do not feel pain.
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Do fish feel pain when cut?

Neurobiologists have long recognized that fish have nervous systems that comprehend and respond to pain. Fish, like “higher vertebrates,” have neurotransmitters such as endorphins that relieve suffering—the only reason for their nervous systems to produce these painkillers is to alleviate pain.
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