The Y chromosomes, which have been the male-determining gene, have been degenerating&nbsp;and are likely to disappear in some million years. But would the vanishment of the Y chromosomes lead to the extinction of men?

Maybe not, because scientists have observed that the two branches of rodents have survived after losing their Y chromosomes.

In a paper published in Proceedings of the National Academy of Science in 2022, it was explained how the spiny rat evolved a new male-determining gene.

So, scientists now believe that the evolution of a new sex gene can stop men from becoming extinct.

<h2>What led to the shrinking male-determining chromosome?&nbsp;</h2>

The Y chromosome started decaying after it was first formed around 180 million years ago when a segment reattached with the same chromosome after breaking off but in the reverse orientation.

Also Read:&nbsp;<a href="https://www.wionews.com/science/scientists-discover-longevity-genes-heres-how-it-can-extend-lifespan-of-humans-752207">Scientists discover longevity genes. Here's how it can extend lifespan of humans</a>

This “reduced the Y chromosome’s ability to recombine with the X chromosome across the majority of its length and subjected its genes to the erosive forces associated with reduced recombination,” read the study, which was published in&nbsp;Nature.

So, by accumulating the bad mutations, Y chromosomes got smaller over time which led it to lose 97 per cent of its ancestral genes.&nbsp;

Meanwhile, the X chromosome conserved its gene content and has around 900 genes currently in comparison to the Y chromosome's meagre 55.

<h2>What makes the Y chromosome special?</h2>

In mammals and humans, two X chromosomes are present in females while males have one X and a Y.

The Y chromosome is special, even though it has fewer genes in comparison to its X counterpart, because it contains the SRY gene which can begin the male development in the embryo.

Watch:&nbsp;Black hole 'moons' may signal advanced alien life

<div class="videoWrapper trancodeVideo"><iframe allowfullscreen="" autoplay="1" class="includeVideo" frameborder="0" height="350" src="https://www.wionews.com/videos/black-hole-moons-may-signal-advanced-alien-life-753519/embed" style="width:100%;max-width:560px;" width="560"></iframe></div>

This is done by the chromosome by acting as a switch which starts the development of testes.

"Our sex chromosomes weren't always X and Y," said Melissa Wilson, who is an evolutionary biologist at Arizona State University, in a paper&nbsp;published back in 2014.

"What determined maleness or femaleness was not specifically linked to them," she added.

(With inputs from agencies)

The Y chromosomes, which have been the male-determining gene, have been degenerating and are likely to disappear in some million years. But would the vanishment of the Y chromosomes lead to the extinction of men?

The Y chromosomes, which have been the male-determining gene, have been degenerating and are likely to disappear in some million years. But would the vanishment of the Y chromosomes lead to the extinction of men? Maybe not, because scientists have observed that the two branches of rodents have survived after losing their Y chromosomes. In a paper published in Proceedings of the National Academy of Science in 2022, it was explained how the spiny rat evolved a new male-determining gene. So, scientists now believe that the evolution of a new sex gene can stop men from becoming extinct. What led to the shrinking male-determining chromosome? The Y chromosome started decaying after it was first formed around 180 million years ago when a segment reattached with the same chromosome after breaking off but in the reverse orientation. Also Read: Scientists discover longevity genes. Here's how it can extend lifespan of humans This “reduced the Y chromosome’s ability to recombine with the X chromosome across the majority of its length and subjected its genes to the erosive forces associated with reduced recombination,” read the study, which was published in Nature. So, by accumulating the bad mutations, Y chromosomes got smaller over time which led it to lose 97 per cent of its ancestral genes. Meanwhile, the X chromosome conserved its gene content and has around 900 genes currently in comparison to the Y chromosome's meagre 55. What makes the Y chromosome special? In mammals and humans, two X chromosomes are present in females while males have one X and a Y. The Y chromosome is special, even though it has fewer genes in comparison to its X counterpart, because it contains the SRY gene which can begin the male development in the embryo. Watch: Black hole 'moons' may signal advanced alien life This is done by the chromosome by acting as a switch which starts the development of testes. "Our sex chromosomes weren't always X and Y," said Melissa Wilson, who is an evolutionary biologist at Arizona State University, in a paper published back in 2014. "What determined maleness or femaleness was not specifically linked to them," she added. (With inputs from agencies)

World is losing Y chromosomes slowly. Will it lead to the extinction of men?

It is normal for Earthlings to expect the Moon to shine high in the night sky but what if it disappears after drifting away from the Earth?&nbsp;

A new study has found that the Moon is slowly moving away from the Earth and it is likely to change the relationship between the planet and its only natural satellite.

<h2>How is the drifting of the Moon impacting Earth?</h2>

According to scientists, the drifting of the Moon has been impacting the length of days on Earth, although at a very slow rate.

As the Moon continues to move away from the Earth in a span of millions of years, it is making an average day's length longer.

Also Read:&nbsp;<a href="https://www.wionews.com/science/moon-vaults-scientist-suggest-ultimate-backup-plan-to-save-earths-endangered-animals-746222">Lunar lifeboats: Scientist suggest ultimate backup plan to save Earth's endangered animals</a>

A team at the University of Wisconsin-Madison carried out a study in which they focused on how rocks were formed 90 million years ago.&nbsp;

In this study, the scientists analysed the interactions of Earth with the Moon nearly 1.4 billion years ago.

It was found that the Moon is going 3.82 centimetres away from Earth every year. This will eventually lead to Earth days extending to 25 hours after 200 million years.&nbsp;

Watch:&nbsp;Earth slows down by 1.33 milliseconds

<div class="videoWrapper trancodeVideo"><iframe allowfullscreen="" autoplay="1" class="includeVideo" frameborder="0" height="350" src="https://www.wionews.com/videos/earth-slows-down-by-133-milliseconds-741345/embed" style="width:100%;max-width:560px;" width="560"></iframe></div>

Professor of geoscience at the University of Wisconsin-Madison Stephen Meyers said, “As the moon moves away, the Earth is like a spinning figure skater who slows down as they stretch their arms out.”

“One of our ambitions was to use astrochronology to tell time in the most distant past, to develop very ancient geological time scales," he added.

“We want to be able to study rocks that are billions of years old in a way that is comparable to how we study modern geologic processes," Meyers said.

(With inputs from agencies)

It is normal for Earthlings to expect the Moon to shine high in the night sky but what if it disappears after drifting away from the Earth? A new study has found that the Moon is slowly moving away from the Earth and it is likely to change the relationship between the planet and its only natural satellite.

It is normal for Earthlings to expect the Moon to shine high in the night sky but what if it disappears after drifting away from the Earth? A new study has found that the Moon is slowly moving away from the Earth and it is likely to change the relationship between the planet and its only natural satellite. How is the drifting of the Moon impacting Earth? According to scientists, the drifting of the Moon has been impacting the length of days on Earth, although at a very slow rate. As the Moon continues to move away from the Earth in a span of millions of years, it is making an average day's length longer. Also Read: Lunar lifeboats: Scientist suggest ultimate backup plan to save Earth's endangered animals A team at the University of Wisconsin-Madison carried out a study in which they focused on how rocks were formed 90 million years ago. In this study, the scientists analysed the interactions of Earth with the Moon nearly 1.4 billion years ago. It was found that the Moon is going 3.82 centimetres away from Earth every year. This will eventually lead to Earth days extending to 25 hours after 200 million years. Watch: Earth slows down by 1.33 milliseconds Professor of geoscience at the University of Wisconsin-Madison Stephen Meyers said, “As the moon moves away, the Earth is like a spinning figure skater who slows down as they stretch their arms out.” “One of our ambitions was to use astrochronology to tell time in the most distant past, to develop very ancient geological time scales," he added. “We want to be able to study rocks that are billions of years old in a way that is comparable to how we study modern geologic processes," Meyers said. (With inputs from agencies)

Moon is going far away from the Earth. Will it disappear soon from night sky?

Scientists, in a new study, have hinted that&nbsp;meteorites may soon disappear from the icy plains of Antarctica due to climate warming.&nbsp;

The Antarctic is a haven for meteorite hunters and is filled with meteorites in today's date. &nbsp;Every year, around 1,000 space rocks are found in the region and it is easy to spot their dark hue in the white expanse.

Field Museum of Natural History and the University of Chicago research scientist Maria Valdes has hinted that the scenario may not be so in the coming days.

“Antarctica, a desert of ice, provides an ideal background for meteorite recovery — go to the right place, and any rock you find must have fallen from the sky,” said Valdes.&nbsp;

In late 2022 and early 2023, she visited the region as part of an expedition team to complete her work at the museum’s Robert A. Pritzker Centre for Meteoritics and Polar Studies. Five meteorites were found by the international team in the expedition.

Also Read:&nbsp;<a href="https://www.wionews.com/science/snow-covered-antarctica-hosts-hundreds-of-volcanoes-scientists-say-their-chances-of-eruption-are-709420">Snow-covered Antarctica hosts hundreds of volcanoes. Scientists say their chances of eruption are...</a>

“We stumbled across an enormous brownstone sitting by itself in the middle of an ice field. It was a little bit smaller than a bowling ball and quite heavy — 7.6 kg (about 17 pounds),” Pritzker said via email.&nbsp;

“I had seen and handled so many meteorites in my career, but finding one yourself is such a different feeling," she added.

<h2>Nearly 5,000 meteorites may&nbsp;disappear every year: study</h2>

The meteorites, which are made part of extraterrestrial bodies such as the moon, Mars or large asteroids, speak in detail about the solar system and how it was formed.&nbsp;

However, the new study emphasises how this trove of scientific information is being threatened by the climate crisis.

Meteorites are getting lost in the melting ice which places them out of the reach of scientists.

“As the climate continues to warm, Antarctic rocks are sinking into the ice at an increasing rate. Over time, this will make many meteorites inaccessible to scientists,” said Valdes, who is not part of the latest research.&nbsp;

Watch:&nbsp;Scientists in Antarctica warn of Bird Flu outbreak as penguin cases confirmed

<div class="videoWrapper trancodeVideo"><iframe allowfullscreen="" autoplay="1" class="includeVideo" frameborder="0" height="350" src="https://www.wionews.com/videos/scientists-in-antarctica-warn-of-bird-flu-outbreak-as-penguin-cases-confirmed-708348/embed" style="width:100%;max-width:560px;" width="560"></iframe></div>

“We lose precious time capsules that hold clues to the history of our Solar System," he added.

As per the study published in the journal Nature Climate Change, as the Earth warms, nearly 5,000 meteorites may&nbsp;disappear from the surface of melting ice sheets every year.&nbsp;

To date, scientists have found more than 48,000 meteorites in Antarctica, which is 60 per cent of specimens found on the entire Earth.

(With inputs from agencies)

Scientists, in a new study, have hinted that meteorites may soon disappear from the icy plains of Antarctica due to climate warming. The Antarctic is a haven for meteorite hunters and is filled with meteorites in today's date.

Scientists, in a new study, have hinted that meteorites may soon disappear from the icy plains of Antarctica due to climate warming. The Antarctic is a haven for meteorite hunters and is filled with meteorites in today's date. Every year, around 1,000 space rocks are found in the region and it is easy to spot their dark hue in the white expanse. Field Museum of Natural History and the University of Chicago research scientist Maria Valdes has hinted that the scenario may not be so in the coming days. “Antarctica, a desert of ice, provides an ideal background for meteorite recovery — go to the right place, and any rock you find must have fallen from the sky,” said Valdes. In late 2022 and early 2023, she visited the region as part of an expedition team to complete her work at the museum’s Robert A. Pritzker Centre for Meteoritics and Polar Studies. Five meteorites were found by the international team in the expedition. Also Read: Snow-covered Antarctica hosts hundreds of volcanoes. Scientists say their chances of eruption are... “We stumbled across an enormous brownstone sitting by itself in the middle of an ice field. It was a little bit smaller than a bowling ball and quite heavy — 7.6 kg (about 17 pounds),” Pritzker said via email. “I had seen and handled so many meteorites in my career, but finding one yourself is such a different feeling," she added. Nearly 5,000 meteorites may disappear every year: study The meteorites, which are made part of extraterrestrial bodies such as the moon, Mars or large asteroids, speak in detail about the solar system and how it was formed. However, the new study emphasises how this trove of scientific information is being threatened by the climate crisis. Meteorites are getting lost in the melting ice which places them out of the reach of scientists. “As the climate continues to warm, Antarctic rocks are sinking into the ice at an increasing rate. Over time, this will make many meteorites inaccessible to scientists,” said Valdes, who is not part of the latest research. Watch: Scientists in Antarctica warn of Bird Flu outbreak as penguin cases confirmed “We lose precious time capsules that hold clues to the history of our Solar System," he added. As per the study published in the journal Nature Climate Change, as the Earth warms, nearly 5,000 meteorites may disappear from the surface of melting ice sheets every year. To date, scientists have found more than 48,000 meteorites in Antarctica, which is 60 per cent of specimens found on the entire Earth. (With inputs from agencies)

Meteorites, hiding in ice sheets of Antarctic, may disappear amid climate warming: study

The mysterious disappearance of Malaysia Airlines Flight MH370 continues to baffle the aviation world, making it&nbsp;one of the most perplexing incidents in history. Departing from Kuala Lumpur en route to Beijing on March 8, 2014, the aircraft vanished from radar screens, carrying 239 passengers and crew members. Despite extensive multinational efforts spanning a decade, involving the scanning of a vast 46,300 square mile area, the aircraft remains missing.

Recent developments have thrust tiny sea creatures, known as barnacles, into the spotlight of scientific inquiry, offering a potential breakthrough in the search for MH370's wreckage.

These barnacles were discovered clinging to the initial piece of debris conclusively linked to MH370—a flaperon bearing the distinctive marking "657 BB," which washed ashore on Reunion Island, situated off the coast of Africa, a year following the event.&nbsp;

Barnacles have earlier also helped&nbsp;researchers in tracking "ghost nets" posing threats to marine life to locating missing vessels.&nbsp;

<a href="https://www.wionews.com/world/mh370-mystery-us-based-company-hopes-to-find-flight-final-resting-place-696980">Also read |&nbsp;MH370 mystery: US-based company claims it knows the flight's final resting place</a>

<h2>Understanding flaperons</h2>

The flaperon, an important component of an aircraft's wing, serves a crucial role in flight dynamics. Positioned along the wing's trailing edge, these metal flaps are observable from the cabin windows, adjusting position during flight manoeuvres.

While satellites and radar technologies have extensively surveyed suspected crash zones, the precise location of the plane has remained a mystery. Scientists now posit that barnacles could provide invaluable insights into solving this mystery. These small&nbsp;creatures offer a unique biological record akin to the growth rings found in trees.

Researchers speculate that by deciphering this information, it may be feasible to retrace the barnacles' trajectory along the flaperon, potentially leading investigators to the crash site.

Also watch |&nbsp;Malaysia to re-open MH370 probe

<div class="videoWrapper trancodeVideo"><iframe allowfullscreen="" autoplay="1" class="includeVideo" frameborder="0" height="350" src="https://www.wionews.com/videos/malaysia-to-re-open-mh370-probe-696558/embed" style="width:100%;max-width:560px;" width="560"></iframe></div>

David Griffin, leading a team of Australian government scientists tasked with resolving the MH370 case, expressed surprise at the newfound significance of barnacles in the investigation. "We stumbled upon something that gave much more certainty about the whereabouts of the plane than we anticipated," he told Metro News.

Identified as Lepas anatifera, these barnacles have previously helped&nbsp;researchers in diverse areas, ranging from tracking "ghost nets" posing threats to marine life to locating missing vessels.&nbsp;

(With inputs from agencies)

The mysterious disappearance of Malaysia Airlines Flight MH370 continues to baffle the aviation world, making it one of the most perplexing incidents in history.

The mysterious disappearance of Malaysia Airlines Flight MH370 continues to baffle the aviation world, making it one of the most perplexing incidents in history. Departing from Kuala Lumpur en route to Beijing on March 8, 2014, the aircraft vanished from radar screens, carrying 239 passengers and crew members. Despite extensive multinational efforts spanning a decade, involving the scanning of a vast 46,300 square mile area, the aircraft remains missing. Recent developments have thrust tiny sea creatures, known as barnacles, into the spotlight of scientific inquiry, offering a potential breakthrough in the search for MH370's wreckage. These barnacles were discovered clinging to the initial piece of debris conclusively linked to MH370—a flaperon bearing the distinctive marking "657 BB," which washed ashore on Reunion Island, situated off the coast of Africa, a year following the event. Barnacles have earlier also helped researchers in tracking "ghost nets" posing threats to marine life to locating missing vessels. Also read | MH370 mystery: US-based company claims it knows the flight's final resting place Understanding flaperons The flaperon, an important component of an aircraft's wing, serves a crucial role in flight dynamics. Positioned along the wing's trailing edge, these metal flaps are observable from the cabin windows, adjusting position during flight manoeuvres. While satellites and radar technologies have extensively surveyed suspected crash zones, the precise location of the plane has remained a mystery. Scientists now posit that barnacles could provide invaluable insights into solving this mystery. These small creatures offer a unique biological record akin to the growth rings found in trees. Researchers speculate that by deciphering this information, it may be feasible to retrace the barnacles' trajectory along the flaperon, potentially leading investigators to the crash site. Also watch | Malaysia to re-open MH370 probe David Griffin, leading a team of Australian government scientists tasked with resolving the MH370 case, expressed surprise at the newfound significance of barnacles in the investigation. "We stumbled upon something that gave much more certainty about the whereabouts of the plane than we anticipated," he told Metro News. Identified as Lepas anatifera, these barnacles have previously helped researchers in diverse areas, ranging from tracking "ghost nets" posing threats to marine life to locating missing vessels. (With inputs from agencies)

Tiny sea creatures could help unravel flight MH370’s mysterious disappearance. Here’s how

A missing Japanese army helicopter carrying 10 crew members&nbsp;is likely to have crashed into the water off a southern island after debris&nbsp;resembling aircraft pieces were seen in the area, reported Los Angeles Times.

The UH-60JA Black Hawk helicopter vanished from radar on Thursday afternoon while on a reconnaissance mission north of Miyako island, according to Yasunori Morishita, the director of Japan's army's Ground Self Defence Force. 
 
Morishita said during a press conference that debris believed to be aircraft pieces was discovered in the area, about 1,120 kilometres southwest of Tokyo, and added that rescue efforts continued for the pilots, mechanics and other members. 
 
In response to China's increasingly assertive military operations in the region, particularly Taiwan, the Japanese government is aggressively boosting its defence capability in southwestern Japan.

According to Kyodo News, Japanese coast guard ships discovered evidence of oil and debris that could be linked to the missing helicopter, but officials have yet to corroborate the report.

Morishita stated that the helicopter vanished from radar earlier than previously supposed.

According to NHK public television, the helicopter vanished from radar about an hour after departing from a base on Miyako island and about half an hour before its anticipated return.

Prime Minister Fumio Kishida stated that the Defence Ministry was investigating the incident. 
 
&nbsp;

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A missing Japanese army helicopter carrying 10 crew members is likely to have crashed into the water off a southern island after debris resembling aircraft pieces were seen in the area, reported Los Angeles Times.

A missing Japanese army helicopter carrying 10 crew members is likely to have crashed into the water off a southern island after debris resembling aircraft pieces were seen in the area, reported Los Angeles Times. The UH-60JA Black Hawk helicopter vanished from radar on Thursday afternoon while on a reconnaissance mission north of Miyako island, according to Yasunori Morishita, the director of Japan's army's Ground Self Defence Force. Morishita said during a press conference that debris believed to be aircraft pieces was discovered in the area, about 1,120 kilometres southwest of Tokyo, and added that rescue efforts continued for the pilots, mechanics and other members. In response to China's increasingly assertive military operations in the region, particularly Taiwan, the Japanese government is aggressively boosting its defence capability in southwestern Japan. According to Kyodo News, Japanese coast guard ships discovered evidence of oil and debris that could be linked to the missing helicopter, but officials have yet to corroborate the report. Morishita stated that the helicopter vanished from radar earlier than previously supposed. According to NHK public television, the helicopter vanished from radar about an hour after departing from a base on Miyako island and about half an hour before its anticipated return. Prime Minister Fumio Kishida stated that the Defence Ministry was investigating the incident. WATCH WION LIVE HERE:

Japanese army chopper carrying 10 crew members vanishes from radar near Okinawa

World's glaciers are shrinking and disappearing faster than scientists previously thought! A new study, published in the journal Science by Carnegie Mellon University, has found that, in the worst-case scenario, 2 out of every 3 glaciers can disappear by the end of this century if fossil fuel use continues unabated.

2 out of every 3 glaciers to disappear by 2021

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