14 strangest scientific findings: jellyfish anus “hidden”

Beijing time on January 3, according tomedia reports, year after year, science will never stop the pace of progress, and constantly give us inspiration, let us feel surprised and awe. Perhaps some of the results will surprise us: “Do we really need to know this?” “Next, we’ll introduce you to the 14 strangest scientific discoveries of 2019.

1, jellyfish “hidden time present” anus

Food is doomed to last long in our bodies, so that the waste they produce can always find the outlet for excretion. But for jellyfish, the anus seems to have nothing to do with it. Previous studies have suggested that there is a permanent excretion center in the mother. But researchers at the Woods Hole Marine Life Laboratory in Massachusetts found last year that the openings at the end of the jellyfish’s digestive tract actually appear and disappear regularly, making it the only known creature to have an “intermittent” anus. Further research may help us understand why other organisms have evolved permanent anus.

2. The tongue also has a sense of smell.

It is well known that smell is closely related to taste. A large part of the complex taste information analyzed by the brain comes from the smell of food. But researchers at the Monell Chemical Sensory Center in the United States were surprised to find that they had the same reaction as olfactory cells in the nasal cavity when they were grown in the lab and exposed to odor molecules. Although this is the first time scientists have found olfactory receptors in human taste bud cells, olfactory reactions have been found in many strange parts of the body, such as the intestines, sperm cells, and even hair.

3. Spiders with webs in the ear canal

When a Chinese patient complained to a doctor that something was “like lying” in his right ear, the doctor had no idea that he would find a spider in the patient’s ear canal. The spider formed a web near the eardrum, covering the patient’s entire ear canal and lived comfortably inside. The doctor tried to clip the spider out with a tweezer, but failed, and finally had to flush it out with physiological saline. The scene was horrifying, but the patient was safe and sound.

4, the number “42” mystery was successfully solved

If you’ve read the Milky Way’ Guide, you must be familiar with the number “42”: it’s the ultimate answer to life, the universe, and everything. But we don’t know what the problem is. But just last year, mathematicians found a problem that might be put to the fore. The results of this study come from the famous puzzle “lost pangraph equation”, i.e. whether each integer between 1 and 100 can be expressed as a cubic sum of three integers. The ancient mathematician Lost Pantu sat out a similar problem 1800 years ago. Today, most integers between 1 and 100 have found the corresponding solution, but the integer solution of 42 uses 500,000 computers worldwide, tries numerous possible solutions, and finally finds that its integer solution is (-8053873812075974) 3 (80435758145817515) 3 s (126021222297335631) s 3 s 42. How, is the answer satisfactory?

5, thieves stole the German submarine monitoring station

The police station near your home may receive a few big cases from time to time, but perhaps no one is more bizarre than this one. On 21 August 2019, a scientific equipment weighing approximately 740 kg was stolen from the Baltic Sea in northern Germany. The device, operated by the Helmhojos Marine Research Centre in Germany, was collecting data on the seabed environment at the time of the incident, resulting in a sudden disappearance of the signal. The researchers initially thought there was something wrong with the transmission of the signal. But when the divers went down to check the situation, they found that the entire station was missing, leaving only one cut-off cable. The center noted that storms, waves and large marine animals were unlikely to move the station, adding that the stolen data was “priceless.”

6. Frogs, dragonflies, lizards and bats found in bagged salads

Bagged salad is a great invention of modern convenience. But in a study published in 2019, the researchers note that shoppers have repeatedly found unpleasant “add-ons” such as frogs, lizards, mice and even bats in bagged salads since 2003. In 20 U.S. states, there have been 40 such incidents. In 10 of the incidents, the small animals in the bag were even alive. Further observations are needed to find out when, and how these small animals entered the salad bag and what steps are taken to prevent such incidents.

7, “Ground” supporters plan to visit the edge of the world

The Plane Earth International Symposium (FEIC) plans to sail to the edge of the earth in 2020 in search of ice walls that prevent the outflow of seawater. The ancient Greeks proved that the earth was a sphere more than 2,000 years ago, but some imaginative people still believe that the earth is a disk, with the North Pole in the middle and surrounded by ice walls. It is not known how these “geo-level” supporters navigate along the way, after all, global navigation systems rely on a network of dozens of satellites around the Earth. If the earth is really flat, then it only takes three satellites to determine the location of any point on the surface.

8. Aliens may look like a face

In April 2019, a report sponsored by NASA in the journal Astrobiology states that in the future, when we look for aliens, we should probably pay special attention to finding fine, surface-like structures, because there are similar structures at the edges of some hot springs on Earth, partly made by microbes. In the Mammoth Hot Springs area of Yellowstone, the water temperature ranges from 65 to 72 degrees Celsius, and the acidity varies from 6.2 to 6.8 degrees. The heat-loving microorganisms here convert calcium carbonate into a long, sticky, pasta-like structure. If we had found similar structures on other planets, it might have been evidence of the existence of extraterrestrial microbes.

9, Chihuahua “kidnapped” by seagulls

A four-year-old chihuahua in the southern British seaside town of Paynton was reportedly picked up by a seagull while “thinking about the birth of a dog” in her garden. It sounds strange, but it’s not impossible. Some birds are omnivorous animals and food includes fish, invertebrates, vegetables, discarded human food, and sometimes small mammals such as mice, moles and even rabbits. Chihuahuas, however, don’t worry particularly because they may be attacked by seagulls, but the probability is very low.

10, scientists discover two-headed rattlesnake

Scientists have discovered a rare two-headed young rattlesnake in a densely forested area of southern New Jersey. These double-headed animals are difficult to live into adulthood in wild conditions. So the two scientists who discovered it took it back and gave it careful feeding and care. According to scientists, the snake’s head on the right appears to be more dominant, but the left head occasionally wants to “go the other way.”

11, simple brainless single-celled organisms can also make complex decisions

The next time someone says you have “no brain,” think of it as a compliment. The study found that even simple single-celled organisms such as rose horn worms can carry out complex decision-making processes. In the face of stimuli, this horn-shaped single-celled creature uses a variety of tactics to solve problems, such as getting around the stimulus, trying to push it away with cilia, shrinking the body to avoid the stimulus, and slipping away when there is no way to do it. They are able to “transform thinking” rather than simply follow simple preset instructions that suggest that this single-celled organism is far more sophisticated than we think.

12. Feed the moon rock to the cockroaches

To ensure that there were no pests on the moon, scientists from the Apollo missions fed moon rocks to cockroaches, goldfish and mice. Charles Berry, who led the Apollo mission medical team, explained in 1999: “We have to prove that moon matter does not pollute not only humans, but also fish, birds, animals, plants, and anything you can think of.” “After the first manned Mission to the Moon, the Apollo 11 mission, NASA produced its own sample of moon rock, bringing in several representative species: Japanese quails representing birds, several common fish, brown shrimp and oysters representing crustaceans, German cockroaches and home flies representing insects, and even several plants bred in the moon. A plant that thrives. The astronauts involved in the Apollo 11 mission also experienced a three-week quarantine after completing their mission. No lunar microbes were found.

13, a knife cut made of faeces doesn’t move

An anthropologist wrote in a report published in the 1990s that an Inuit man used his frozen feces to make a knife with his frozen faeces, then killed a dog with it, and used it to make a sled with the dog’s ribs, which disappeared into the night. But it turns out that this may just be a joke made up by the Inuit to trick anthropologists. To determine the truth of the story, researchers at Kent State University in Ohio followed arctic diets for eight days, ingesting large amounts of protein and fatty acids, then cooling their faeces to minus 50 degrees Celsius, making them blade-like and keeping them frozen with dry ice. These blades made from faeces are very hard, but they simply do not cut the meat and leave only a crayon-like brown mark on the meat.

14, thousands of “penis fish” washed up on shore

Drex Beach, north of San Francisco, had a winter chill last month when thousands of “penis fish” “flooded” on the beach. You may want to ask, why do good end fish call the name? It may have something to do with their shape and length. The creature is actually a sea worm native to the Pacific coast between southern Oregon and Mexico. They usually drill holes in the beach, digging a tunnel-like underground passageway where they can live and eat. But in the event of a storm, their warm homes are destroyed, leaving them with nowhere to go and having to walk across the beach. (Leaf)

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