Which animal can live without oxygen?

In a study published Monday in the Proceedings of the National Academy of Sciences , researchers have now identified the first animal that doesn't use oxygen to breathe: Henneguya salminicola
Henneguya salminicola
Henneguya salminicola is the first and thus far only known multicellular animal that completely lacks a mitochondrial genome and typical mitochondria, meaning it does not use aerobic respiration to produce energy, but some other, yet unknown, way; it as such does not breathe oxygen.
https://en.wikipedia.org › wiki › Henneguya_zschokkei
, an 8-millimeter white parasite that infects the flesh of Chinook salmon.

Which animal can survive longest without oxygen?

New research shows that naked mole rats can survive for hours in extremely low-oxygen environments, and can live for as long as an astonishing 18 minutes without any air at all. The findings may eventually pay off in heart attack and stroke treatments.

What animal needs the least oxygen?

The organism, a parasite called Henneguya salminicola that is distantly related to coral and jellyfish, lives in salmon tissue and has evolved to survive without needing oxygen for energy.

Which can live without oxygen of air?

yeast only. because it comes under the catagory of anaerobic respiration(without oxygen)

Which animal can live without oxygen for 6 days?

Scorpions are organisms which can hold their breath for up to even 6 days. Scorpions are called arachnids, which are members of the animal kingdom's arachnid class. Their modified lungs, which are known as book lungs, also allow them to hold their breath for long.


Which animal has no death?

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.

What animal lives 2 years without food?

Tardigrades can live years without food. These are their adaptations to extreme climatic conditions in their habitat for survival. Animals like Emperor penguin, Tardigrade do not eat food in extreme climatic conditions and undergoes a dormant stage.

Do fish need oxygen?

Oxygen is as critical to fish life as it is to human life. Dissolved oxygen (DO) refers to the oxygen gas that is dissolved in water. Fish absorb the DO directly from the water into their bloodstream through their gills.

Do fish breathe oxygen?

Humans and fish both require oxygen to survive. The difference is, we get our oxygen through air while fish get it through water. With humans, the lungs extract oxygen from the air we breathe and transfer it into the bloodstream, at the same time releasing carbon dioxide from the system.

What animal doesn t need water?

The kangaroo rat never has to drink water—it just gets it from the seeds it eats. To survive in the dry climes of the American West, its kidneys generate super-concentrated urine, and it doesn't pant or sweat. Some species can even lower their metabolic rates so they lose less moisture through breathing.

Which animal doesn t sleep?

They react differently when external stimuli are applied while sleeping and while awake. But the bullfrog, Lithobates catesbeianus show the same reaction in both situations. This indicates that bullfrogs do not sleep. Lithobates catesbeianus is an animal that cannot sleep.

What is the weakest animal alive?

Too Weak to Support Its Own Body Weight: The Jellyfish

Crystal jellies Aequorea victoria, are a bioluminescent hydrozoan jellyfish, or hydromedusa, that is found off the west coast of North America. Almost every living creature on the planet has at least the strength to support its own body and move around.

Do trees need oxygen?

While trees use carbon dioxide to make their own food, they actually need oxygen (much like humans do) to process that food into energy. In order to use stored starch for growth, trees must convert the sugars back into energy through a process called respiration. Respiration requires oxygen.

What animal lives 10 days without water?

Cheetahs can go 10 days without a drink of water. They take water from their prey.

What animal can survive 1000 years?

Estimates of sponge longevity vary quite a bit, but are often in the thousands of years. One study in the journal Aging Research Reviews notes a deep-sea sponge from the species Monorhaphis chuni lived to be 11,000 years old. Yes, a sponge is an animal—and it has a remarkable life-span.

Do water bears need oxygen?

Although both humans and water bears need oxygen to survive, water bears do not breathe the way we do. In fact, they do not even possess respiratory organs like lungs. Water bears take up air through the surfaces of their bodies, just like insects.

Do fish have blood?

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.

Do fish get thirsty?

As well as getting water through osmosis, saltwater fish need to purposefully drink water in order to get enough into their systems.

Can humans breathe underwater?

Humans cannot breathe underwater because our lungs do not have enough surface area to absorb enough oxygen from water, and the lining in our lungs is adapted to handle air rather than water.

Do sharks need oxygen?

How Sharks Breathe. Sharks don't have lungs, but they do have to breathe oxygen to survive. Instead of breathing air, though, sharks get oxygen from the water that surrounds them.

Do fish sleep at night?

While fish do not sleep in the same way that land mammals sleep, most fish do rest. Research shows that fish may reduce their activity and metabolism while remaining alert to danger. Some fish float in place, some wedge themselves into a secure spot in the mud or coral, and some even locate a suitable nest.

How much oxygen is in water?

The oxygen content of surface waters of normal salinity in the summer is typically more than 8 milligrams per liter (8 mg/L); when oxygen concentrations are less than 2 mg/L, the water is defined as hypoxic (CENR, 2000).

Which animal can sleep for 3 years without eating?

Why Do Snails Sleep So Long? Snails need moisture to survive; so if the weather is not cooperating, they can actually sleep up to three years.

What animal only eats once a year?

But snakes take this to the extreme. They can range from eating a meal nearly every day to only once in a whole year! It depends a lot on the species of snake, its age and size, and the size of its last meal.

What animal can go months without eating?


You will be surprised to know that crocodiles, as one of the oldest reptiles of the planet can go for a few months without food, and in extreme cases, they can go up to three years without food. They save energy by moving slow and at times by being motionless too.