Thursday, February 22, 2018
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New shark species discovered in Atlantic OceanFor representation only. Photo source: Thinkstock

New shark species discovered in Atlantic Ocean

21 Feb 2018 | 9:02 PM

NEW YORK: A team of scientists has identified a new shark species residing in the Atlantic Ocean.

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New York

A team of scientists has identified a new shark species residing in the Atlantic Ocean.

Using genetic testing, the study confirmed that the new species, named the "Atlantic sixgill shark", is different than its counterparts in the Indian and Pacific Oceans.

"We showed that the sixgills in the Atlantic are actually very different from the ones in the Indian and Pacific Oceans on a molecular level, to the point where it is obvious that they're a different species even though they look very similar to the naked eye," said Toby Daly-Engel, Assistant Professor and shark biologist at the Florida Institute of Technology.

Measuring up to 6 feet in length, Atlantic sixgill sharks are far smaller than their Indo-Pacific relatives, which can grow to 15 feet or longer.

They have unique, saw-like lower teeth and six gill slits, as their name suggests, while most sharks have five gill slits.

With their new classification, Atlantic sixgill sharks will now have a better chance at long-term survival, Daly-Engel noted.

"Because we now know there are two unique species, we have a sense of the overall variation in populations of sixgills. We understand that if we overfish one of them, they will not replenish from elsewhere in the world," she said.

With ancestors dating back to over 250 million years, well before dinosaurs, sixgill sharks are among the oldest creatures on Earth.

Yet the fact that they reside at extreme ocean depths, sometimes thousands of feet below the surface, has made them especially challenging to study.

Using 1,310 base pairs of two mitochondrial genes, the team determined there are enough genetic differences between what had long been considered a single species, Hexanchus nakamurai, to rename the Atlantic variety Hexanchus vitulus.

Their findings were reported in the journal Marine Biodiversity. — IANS

How humans got bigger brains decoded

How humans got bigger brains decoded

21 Feb 2018 | 5:01 PM

WASHINGTON: Average brain size of humans increased gradually and consistently over the past three million years, growing to over three times larger than our closest living relatives, chimpanzees and bonobos.

New laser system can remotely charge your smartphone

New laser system can remotely charge your smartphone

21 Feb 2018 | 11:18 AM

WASHINGTON: Scientists, including those of Indian origin, have developed a laser emitter that can safely charge a smartphone across a room as quickly as a standard USB cable.

3D printed clip-on can turn your smartphone into microscope

3D printed clip-on can turn your smartphone into microscope

20 Feb 2018 | 9:34 PM

MELBOURNE: Scientists have developed a 3D printable clip-on that allows anyone to turn their smartphone into a fully functional microscope.

Most distant supernova ever confirmed

Most distant supernova ever confirmed

20 Feb 2018 | 9:07 PM

LONDON: Scientists have confirmed the discovery of the most distant supernova ever detected—a huge cosmic explosion that took place 10.5 billion years ago, or three-quarters the age of the universe.

'Rock stripes' on Mars may point to presence of water

'Rock stripes' on Mars may point to presence of water

18 Feb 2018 | 4:14 PM

WASHINGTON: NASA's Mars Exploration Rover Opportunity—which completed 5,000 Martian days—has spotted "rock stripes" on the red planet similar to those seen on some mountain slopes on Earth that result from repeated cycles of freezing and thawing of wet soil.

Hidden details in Picasso painting uncovered

Hidden details in Picasso painting uncovered

18 Feb 2018 | 3:43 PM

WASHINGTON: Scientists have uncovered details of a landscape hidden underneath the visible surface of Spanish artist Pablo Picasso’s painting that depicts a crouching and cloaked woman, painted in white, blues, greys and greens.

NASA's Kepler discovers nearly 100 new exoplanets

NASA's Kepler discovers nearly 100 new exoplanets

18 Feb 2018 | 3:42 PM

LONDON: An international team of scientists have confirmed the discovery of nearly 100 new exoplanets—planets located outside our solar system.

Back-and-forth exchanges boost children's brain response to language

Back-and-forth exchanges boost children's brain response to language

18 Feb 2018 | 3:43 PM

WASHINGTON: Scientists have found that conversation between an adult and a child may change the child's brain, and this back-and-forth conversation can be more critical to language development.

Belgian court orders Facebook to stop collecting users’ data

Belgian court orders Facebook to stop collecting users’ data

17 Feb 2018 | 11:37 AM

BRUSSELS: A Belgian court has ordered Facebook to stop collecting data on users or face daily penalty of 2,50,000 euros.

Hubble captures Neptune's mysterious shrinking storm

Hubble captures Neptune's mysterious shrinking storm

18 Feb 2018 | 3:42 PM

LOS ANGELES: NASA Hubble Space Telescope has captured Neptune's mysterious dark storm that probably smells like rotten eggs, and is shrinking out of existence.

Apple acknowledges serious iOS bug, to fix it soon

Apple acknowledges serious iOS bug, to fix it soon

16 Feb 2018 | 11:43 AM

SAN FRANCISCO: Apple has admitted that the iOS 11.2.5 has a serious bug which is capable of crashing apps and Apple devices via iMessage, saying that it was working on to fix it.

Alzheimer’s disease reversed in mice

Alzheimer’s disease reversed in mice

15 Feb 2018 | 5:17 PM

WASHINGTON: In a breakthrough, scientists have successfully reversed the formation of amyloid plaques in the brains of mice with Alzheimer’s disease, and improved the animals’ cognitive function.

Extreme weather events more likely if Paris goals aren't met, study says

Extreme weather events more likely if Paris goals aren't met, study says

14 Feb 2018 | 9:48 PM

WASHINGTON: The UN Paris Agreement that aims to limit the global temperature rise to less than two degrees Celsius is unlikely to be met, and could increase the likelihood of extreme weather, a study warns.

Xiaomi kicks off 2018 with Redmi Note 5, Note 5 Pro in India

Xiaomi kicks off 2018 with Redmi Note 5, Note 5 Pro in India

14 Feb 2018 | 7:20 PM

NEW DELHI: Buoyed by its performance in the fourth quarter last year, Chinese smartphone maker Xiaomi on Wednesday launched two devices - Xiaomi Redmi Note 5 and Note 5 Pro - in the price-sensitive Indian market.

Not our job to recruit journalists for content: Facebook

Not our job to recruit journalists for content: Facebook

14 Feb 2018 | 12:23 PM

SAN FRANCISCO: In a clear message to news publishers, a top Facebook executive has emphasised that it is not their job to recruit people from media organisations for the content on the social media platform.

Drones monitor wildlife better than humans: study

Drones monitor wildlife better than humans: study

14 Feb 2018 | 10:53 AM

MELBOURNE: Drones can be used to monitor wildlife more accurately than traditional counting approaches, a study has found.

Why do people get aggressive after drinking?

Why do people get aggressive after drinking?

13 Feb 2018 | 9:31 PM

SYDNEY: Do you tend to get aggressive just after a peg or two? It is because certain areas in the brain that temper aggression shuts off, researchers say.

How an all-female fish species evades extinction

How an all-female fish species evades extinction

13 Feb 2018 | 5:00 PM

BERLIN: A rare all-female fish species—native to the border region of Texas and Mexico— continues to thrive, defying existing theories of evolution which predict that asexually reproducing animals can not survive in the long run, scientists say.

Lightning storms to as climate warms

Lightning storms to as climate warms

13 Feb 2018 | 1:55 PM

LONDON: New research forecasts a 15 per cent in the average number of lightning flashes worldwide by the turn of this century, if global temperatures are in the top range of forecasts.

Climate change speeding up sea level rise, satellites show

13 Feb 2018 | 12:13 PM

WASHINGTON: Climate change has accelerated sea level rise and the rate at which it is rising is increasing every year, a study citing satellite data has revealed.

New Snapchat draws ire of over 6 lakh users

New Snapchat draws ire of over 6 lakh users

13 Feb 2018 | 11:15 AM

LONDON: Snapchat's latest redesign, which was released last week, has not gone down well with many users. This is evident from the fact that an online petition calling for removal of the new has attracted more than than 6 lakh signatures.

Facebook to test news paywalls on iOS

Facebook to test news paywalls on iOS

13 Feb 2018 | 11:05 AM

NEW YORK: Social media giant Facebook will begin allowing news publishers to run paywalls inside the iOS app from March 1.

Less-cool Facebook losing youth at fast pace: Survey

Less-cool Facebook losing youth at fast pace: Survey

12 Feb 2018 | 6:33 PM

WASHINGTON: With mom, dad and grandma signing up in increasing numbers, Facebook is losing younger users in the United States at a faster pace than previously estimated, researchers said on Monday.

New age-detecting system to make your smartphone childproof

New age-detecting system to make your smartphone childproof

12 Feb 2018 | 5:29 PM

WASHINGTON: Your smartphone may soon be able to tell if your toddler is swiping the screen and automatically block apps that are off-limits for kids.

Future cities may be built with volcanic ash

Future cities may be built with volcanic ash

11 Feb 2018 | 4:54 PM

BOSTON: Fine volcanic ash can be used as a sustainable additive in concrete, and significantly reduce the energy spent in building infrastructure, a study has found.

Why Neanderthals could not draw

Why Neanderthals could not draw

11 Feb 2018 | 3:50 PM

LOS ANGELES: Neanderthals lacked the hand- eye coordination to draw vivid renderings of animals and other figures, unlike early modern humans, according to a study that may explain the differences in how both groups hunted.

Majority of 8-12 years old kids prone to online threats

Majority of 8-12 years old kids prone to online threats

11 Feb 2018 | 11:09 AM

NEW DELHI: Majority of kids in the age bracket of 8-12 are subjected to online threats like cyber- bullying and video game addiction, and the situation is “acute” in emerging economies, says a survey.

New device could charge your gadgets with body movements

New device could charge your gadgets with body movements

11 Feb 2018 | 11:01 AM

WASHINGTON: Searching for a power outlet to charge your devices may soon become a thing of the past, as scientists have developed a small metallic tab that can generate electricity from simple body movements.

Premature babies have fewer childhood friends

Premature babies have fewer childhood friends

09 Feb 2018 | 4:48 PM

LONDON: Premature babies make fewer friends and spend less time socialising in early childhood, according to a study.

First human eggs grown in laboratory in UK

First human eggs grown in laboratory in UK

09 Feb 2018 | 4:58 PM

LONDON: Scientists at the University of Edinburgh have said they have succeeded in growing human eggs in the laboratory for the first time, offering new hope for fertility treatments.

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