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Earth’s Earliest Mobile Organisms Lived 2.1 Billion Years Ago

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Scientists have discovered in 2.1-billion-year-old black shale from a quarry in Gabon the earliest evidence of a revolutionary development in the history of life on Earth, the ability of organisms to move from one place to another on their own.

The researchers on Monday described exquisitely preserved fossils of small tubular structures created when unknown organisms moved through soft mud in search of food in a calm and shallow marine ecosystem. The fossils dated back to a time when Earth was oxygen-rich and boasted conditions conducive to simple cellular life evolving more complexity, they said.

Life emerged in Earth’s seas as single-celled bacterial organisms perhaps 4 billion years ago, but the earliest life forms lacked the ability to move independently, called motility. The Gabon fossils are roughly 1.5 billion years older than the previous earliest evidence of motility and appearance of animal life.

The Gabonese shale deposits have been a treasure trove, also containing fossils of the oldest-known multicellular organisms.

“What matters here is their astonishing complexity and diversity in shape and size, and likely in terms of metabolic, developmental and behavioral patterns, including the just-discovered earliest evidence of motility, at least for certain among them,” said paleobiogeochemist and sedimentologist Abderrazak El Albani of the University of Poitiers in France.

The identity of these pioneering mobile organisms remains mysterious. The fossils did not include the organisms themselves.

The tubular structures, up to 6.7 inches (170 mm long), originally were made of organic matter, perhaps mucus strands left by organisms moving through mud.

The researchers said the structures may have been created by a multicellular organism or an aggregation of single-celled organisms akin to the slug-like organism formed when certain amoebas cluster together in lean times to move collectively to find a more hospitable environment.

“Life during the so-called Paleoproterozoic Era, 2.5 to 1.6 billion years ago, was not only bacterial, but more complex organisms had emerged at some point, likely only during some phases and under certain environmental circumstances,” El Albani said.

In comparison, the first vertebrates appeared about 525 million years ago, dinosaurs about 230 million years ago and Homo sapiens about 300,000 years ago.

The evolutionary experimentation with motility may have encountered a setback relatively soon after the Gabon organisms lived because of a dramatic drop in atmospheric oxygen 2.08 billion years ago.

The research was published in the Proceedings of the National Academy of Sciences. -Reuters

-Will Dunham

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The Rage And Tears That Tore A Nation

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Snapshots of the outrage against foreign nationals and protests against sexual offenders in South Africa in recent weeks, captured by FORBES AFRICA photojournalist Motlabana Monnakgotla.


As the continent’s second-biggest economy, South Africa attracts migrants from the rest of Africa. But mired in its own problems of unemployment and political instability, September saw a serious outbreak of attacks by South Africans on foreign nationals and foreign-owned businesses. And they have been ugly.    

The spark that fueled the raging fire was in Pretoria, the country’s capital, when a taxi driver was shot dead by a foreign national who was selling drugs to a youngster in the central business district (CBD).

The altercation caused a riot and the taxi industry brought the CBD to a standstill, blocking intersections. It did not stop there; a week later, about 60 kilometers from the capital in Malvern, a suburb east of the Johannesburg CBD, a hijacked building caught fire, leaving three dead. As emergency services were putting out the fire, the residents took advantage and looted foreign-owned shops and burned car dealerships overnight on Jules Street.

The lootings extended to the CBD and other parts of Johannesburg.

To capture this embarrassing moment in South African history, I visited Katlehong, a township 35 kilometers east of Johannesburg, where the residents blocked roads leading to Sontonga Mall on a mission to loot the mall and the foreign-owned shops therein overnight.

Shop-owners and workers were shocked to wake up to no business.

Mfundo Maljingolo, a worker at Fish And Chips, was among the distressed.

“This thing started last night, people started looting and broke into the mall and did what they wanted to do. I couldn’t go to work today because there’s nothing to do; now, we are not going to get paid. The shop will be losing close to R10,000 ($677) today. It’s messed up,” said Maljingolo.

But South African businesses were affected too.

Among the shops at the mall is Webbers, a clothing and footwear store. Looters could not enter the shop and it was one of the few that escaped the vandalism.

Dineo Nyembe, the store’s manager, said she was in disbelief when she saw people could not enter the mall.

“We got here this morning and the ceiling was wrecked but there was no sign that the shop was entered, everything was just as we left it. Now, we are packing stock back to the warehouse, because we don’t know if they are coming back tonight,” lamented Nyembe, unsure if they would make their daily target or if they would be trading again.

 Across the now-wrecked mall are small businesses that were not as fortunate as Webbers, and it was not only the shop-owners that were affected. 

Emmanuel Nhlane’s home was robbed even as attackers were looting the shop outside.

“They broke into my house, I was threatened with a petrol bomb and I had to stand outside to give them a chance; they took my fridge, bed, cash and my VHS,” said Nhlane.

Nhlane had rented out his yard to foreign nationals to operate a shop. He does not comprehend why his belongings were taken because he doesn’t own a shop. Now, it means that the unemployed Nhlane will not be getting his monthly rental fee of R3,700 ($250).

Far away, the coastal KwaZulu-Natal province of South Africa, was also affected as trucks burned and a driver was killed because of his nationality. This was part of a logistics and transport industry national strike.

Back in Johannesburg, I visited the car dealerships that were a part of the burning spree on Jules Street.

The streets were still ashy and the air still smoky, two days after the unfortunate turn of events.

Muhamed Haffejee, one of the distraught businessmen there, said: “Currently, we are still not trading.” 

Cape Town, in the Western Cape province of South Africa, which hosted the World Economic Forum (WEF) on Africa from September 4 to 6, was also witness to protests by women and girls from all walks of life outside the Cape Town International Convention Centre, demanding that the leadership take action to end the spate of gender-based violence (GBV) in the country.

There were protests also outside Parliament. What set off the nationwide outcry was the shocking rape and murder of Uyinene Mrwetyana, a 19-year-old film and media student at the University of Cape Town, inside a post office by a 42-year-old employee at the post office.

There was anger against the ghastly crimes and wave of GBV in the country that continues unabated. According to Stats SA, there has been a drastic increase of women-based violence in South Africa; sexual offences are up by 4.6%, from 50,108 in 2018 to 52,420 in 2019.

A week later, on a Friday, Sandton, Africa’s richest square mile and one of the biggest economic hubs, was shut down by hundreds of angry women and members of advocacy groups from across Johannesburg. They congregated by the Johannesburg Stock Exchange (JSE), the cynosure of business, singing and chanting, to demand “a 2% levy on profits of all listed entities to help fund the fight against GBV and femicide”.   

Among the protesters was Cebi Ngqinanbi, holding a placard that read: “I’m not your punching bag.”

“We came here to disrupt Sandton as the heart of Johannesburg’s economic hub. We want to make everyone aware that women and children are being killed every day in South Africa and they [Sandton] continue with business as usual, sitting in their offices with air-conditioners and the stock exchange whilst people on the ground making them rich are dying. That is why we are here, to speak to those that have economic power,” said Ngqinanbi.

She added that if women can be given economic power, they will be able to fend for themselves and won’t fall prey to abusive men, since most women stay in abusive relationships because men are more financially stable.

Amid the chanting and singing of struggle songs, Nobuhle Ajiti addressed the crowd and shared her own haunting experience as a migrant in South Africa and survivor of GBV. She spoke in isiZulu, a South African language.

“I survived a gang rape; I was thrown out of a moving car and stabbed several times. I survived it, but am I going to survive xenophobia that is looming around in South Africa? Will I able to share my xenophobia story like I can share my GBV story?” questioned Ajiti.

She said as migrants, they did not wake up in the morning and decide to come to South Africa, but because of the hardships faced in their home countries, they were forced to come to what they perceived as the city of opportunities. And as a foreign national, she had to deal with both xenophobia and GBV.

“We experience institutionalized xenophobia in hospitals; we are forced to pay huge amounts for consultation. I am raped and I need medical attention and I am told I need to pay R5,000 ($250).

“As a mere migrant, where am I going to get R5,000? I get abused at home and the police officer would ask me where I’m from because of my accent, I sound Zimbabwean. What does my nationality have to do with my husband beating me at home or with the man that just raped me?” she asked.

Women stop traffic while they hold up placards stating their grievences against GBV. Picture: Motlabana Monnakgotla

Addressing the resolute women outside was the JSE CEO Nicky Newton-King who received the memorandum demanding business take their plight seriously, from a civil society group representing over 70 civil society organizations and individuals.

The list of demands include that at all JSE-listed companies contribute to a fund to resource the National Strategy Plan on GBV and femicide, to be launched in November; transport for employees who work night shifts or work after hours; establish workplace mechanisms to provide support to GBV survivors as part of employee wellness, and prevention programs that help make workplaces safe spaces for all women.

Newton-King assured the protestors she would address their demands in seven days. But a lot can happen in seven days. Will there be more crimes in the meantime? How many more will be raped and killed in South Africa by then?

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How LinkedIn Is Looking To Help Close The Ever-Growing Skills Gap

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As the job market has evolved, so too have the skills required of seekers. But when 75% of human resources professionals say a skills shortage has made recruiting particularly challenging in recent months, it would appear as though the workforce hasn’t quite kept pace. Now LinkedIn is stepping in to help close the gap.

On Tuesday, the professional social network announced the launch of a “Skills Assessments” tool, through which users can put their knowledge to the test. Those who pass are given the opportunity to display a badge that reads “passed” next to the skill on their profile pages, a validation of sorts that LinkedIn hopes will encourage skills development among its users and help better match potential employees with the right employers.  

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“We see an evolving labor market and much more sophistication in how recruiters and hiring managers look for skills. … We also see a changing learning market,” says Hari Srinivasan, senior director of product management at LinkedIn Learning. “The combination of those two made us excited about changing our opportunity marketplace to make the hiring side and the learning side work better together.”

So how exactly does it work? Let’s say a user wants to showcase her proficiency in Microsoft Excel. Rather than simply listing “Excel” in the skills section of her profile, she can take a multiple-choice test to demonstrate the extent to which she is an expert.

If she aces the test, not only will a badge verifying her aptitude will appear on her profile, but she will be more likely to surface in searches by recruiters, who can search for candidates by skill in the same way they might do so by college or employer. If she fails, she can take the test again, but she’ll have to wait a few months—plenty of time to develop her skillset.   

The tool has been in beta mode since March, and while just 2 million people have used it—a mere fraction of LinkedIn’s 630 million members—early results seem promising. According to LinkedIn, members who’ve completed skills assessments have been nearly 30% more likely to land jobs than their counterparts who did not take the tests.

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“This has been a really good way for members to represent what they know, what they are good at,” says Emrecan Dogan, LinkedIn group product manager.

While new to LinkedIn, the practice of assessing candidates’ skills has been a standard among hiring managers for decades. But when research commissioned by LinkedIn revealed that 69% of employees feel that skills have become more important to recruiters than education, LinkedIn felt as though this was the time to give job seekers the opportunity to prove themselves from the get-go.

As important as the hard skills that members can put to the test through LinkedIn’s new tool may be, Dawn Fay, senior district president at recruiting firm Robert Half, encourages those on both side of the job search not to forget the importance of soft skills. “You wouldn’t want to rule somebody in or out just based on how they did on one particular skill assessment,” she says.

“Have another data point that you can use, question people about how they did on something and see if it’s something that can feed into the puzzle to find out if somebody is going to be a good fit.”

-Samantha Todd; Forbes

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Why The High Number Of Employees Quitting Reveals A Strong Job Market

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While recession fears may be looming in the minds of some, new data from the Bureau of Labor Statistics shows that the economy and job market may actually be strengthening.

The quits rate—or the percentage of all employees who quit during a given month—rose to 2.4% in July, according to the BLS’s Jobs Openings and Labor Turnover report, released Tuesday. That translates to 3.6 million people who voluntarily left their jobs in July.

This is the highest the quits rate has been since April 2001, just five months after the Labor Department began tracking it. According to Nick Bunker, an economist at the Indeed Hiring Lab, the quits rate tends to be a reflection of the state of the economy.

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“The level of the quits rate really is a sign of how strong the labor market is,” he says. “If you look at the quits rate over time, it really drops quite a bit when the labor market gets weak. During the recession it was quite low, and now it’s picked up.”

The monthly jobs report, released last week, revealed that the economy gained 130,000 jobs in August, which is 20,000 less than expected, and just a few weeks earlier, the BLS issued a correction stating that it had overestimated by 501,000 how many jobs had been added to the market in 2018 and the first quarter of 2019. Yet despite all that, employees still seem to have confidence in the job market.Today In: Leadership

The quits level, according to the BLS, increased in the private sector by 127,000 for July but was little changed in government. Healthcare and social assistance saw an uptick in departures to the tune of 54,000 workers, while the federal government saw a rise of 3,000.

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The July quits rate in construction was 2.4%, while the number in trade, professional and business services, and leisure and hospitality were 2.6%, 3.1% and 4.8%, respectively. Bunker of Indeed says that the industries that tend to see the highest rate of departuresare those where pay is relatively low, such as leisure and hospitality. An unknown is whether employees are quitting these jobs to go to a new industry or whether they’re leaving for another job in the same industry. Either could be the case, says Bunker.

In a recently published article on the industries seeing the most worker departures, Bunker attributes the uptick to two factors—the strong labor market and faster wage growth in the industries concerned: “A stronger labor market means employers must fill more openings from the ranks of the already employed, who have to quit their jobs, instead of hiring jobless workers. Similarly, faster wage growth in an industry signals workers that opportunities abound and they might get higher pay by taking a new job.”

Even so, recession fears still dominate headlines. According to Bunker, the data shows that when a recession hits, employers pull back on hiring and workers don’t have the opportunity to find new jobs. Thus, workers feel less confident and are less likely to quit.

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“As the labor market gets stronger, there’s more opportunities for workers who already have jobs. So they quit to go to new jobs or they quit in the hopes of getting new jobs again,” Bunker says. He also notes that recession fears may have little to do with the job market, instead stemming from what is happening in the financial markets, international relations or Washington, D.C.

So what does the BLS report say about the job market? “Taking this report as a whole, it’s indicating that the labor market is still quite strong, but then we lost momentum,” Bunker says. While workers are quitting their jobs, he says that employers are pulling back on the pace at which they’re adding jobs. “While things are quite good right now and workers are taking advantage of that,” he notes, “those opportunities moving forward might be fewer and fewer if the trend keeps up.”

-Samantha Todd; Forbes

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