Wednesday, July 1, 2020

World's largest graveyard of Dinosaurs found in South Africa

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Nikhita Gautam

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World's largest graveyard of Dinosaurs found in South Africa

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Global Views 360

Publication Date

July 1, 2020

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‘African dinosaurs’ exhibit at the Iziko South African Museum in Cape Town

‘African dinosaurs’ exhibit at the Iziko South African Museum in Cape Town | Source: Bruce Anderson via Wikimedia

In a village in the eastern cape of South Africa lies one of the most significant dinosaur sites ever found in the world. The site was discovered when a shepherd, Dumangwe Thyobeka found a large bone on his way to his great-grandparents’ graves, in 2015. He then took the bones to a local dinosaur enthusiast, James Rhalene. Commenting on this discovery " Mr. Rhalene said, "Growing up we were told dinosaurs were a myth, I thought they were only tales our grandparents would tell around the fire at story time", and It wasn't until reading some books that I started to believe they may be real. I've been looking into the existence of dinosaurs since 1982. He added, "You can imagine my excitement at being part of this and discovering them in my own backyard. I am so proud. Books will be written about our small village; the world will come to know of us through this discovery.”

These bones are more than 200 million years old, of around the end of the Triassic era and the beginning of the Jurassic one. When the village elder, Sginyane Ralane came to know about the discovery, he reached out to universities in South Africa for looking into it. The news eventually reached Prof. Jonah Choiniere from the University of Witwatersrand in Johannesburg, and in 2018 Jonah and his colleagues started excavating the site. “It has been one of those places where you sometimes find yourself literally tripping over a dinosaur bone. There are very few other sites I've had the chance to work where we have this richness of fossils.” says Prof Paul Barett, a dinosaur expert at The Natural History Museum, UK, after he joined the team.

A reason why this area is abundant in fossils, Natural History Museum explains, is because of the ancient river systems in the area. The area is arid for most of the year now, and the rivers flow only seasonally. However, in the ancient times, there were vast river systems flowing year-round in the region, with wide, shallow rivers which would consequently form a layer of rock 210 million years old which is up to 500 meters thick in some regions. These rivers supported diverse wildlife, including ancestors of crocodiles, possibly those of turtles and mammals and fish, amphibians and reptile-like animals. The existence of such large rivers meant that dead animals nearby would be buried in sediment before they decomposed.  

This discovery is scientifically important for a number of reasons; the era from which these bones are found is a boundary in which a mass extinction occurred. Prof. Jonah is trying to understand how the animals from before that extinction survived and how they flourished after. In the Triassic era, there were multiple dominating animals, like the crocodiles, big mammal-like animals and dinosaurs. In the Jurassic era, however, the dinosaurs are clearly dominating. Why this happened is unclear, and the rocks and fossils from this site might help with that. There were also other animals along with dinosaurs in this site which make it noteworthy. Of the animals found, there were rauisuchians, which relate to modern-day crocodiles, and were dominant on land during the Triassic. The team also found cyclodonts and dicyclodonts, where the cyclodonts are the early ancestors to all mammals, and dicyclodonts are an even earlier branch of the mammalian family tree.

All of these have a significant impact on the community too; the team signed a memorandum of understanding with the local government with huge. After the signing, local officials visited the site at Qhemega. The team has been trying to use the heavy machinery they had brought for moving fossils for improving access in and to the village. They are also developing a curriculum in high schools to include topics about fossil sites and to add geography to the curriculum, to train the younger generation about the mapping used in excavation and in many other scientific fields especially relevant in the mineral-resource rich South Africa.

So far, this site has only provided benefits for everyone involved; new discoveries and confirming data for the scientific community, and economic access, increased opportunities and a matter for pride for the local community.

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February 4, 2021 5:07 PM

Expat Exodus In The Middle East

The COVID-19 pandemic has hit people and economies worldwide, sparking a global recession and financially destabilising millions of people. In the Middle East, dipping oil prices have only worsened the threat to the economy. Businesses are shutting down, and many are trying to survive by cutting the salaries or laying off of workers. Large segments of the workers in these countries are expatriates, and many have struggled to make ends meet as unemployment soared.

The development of the Gulf countries has always been intertwined with their large expat populations. These workers are often vital to the economy, not just as part of the workforce but also as consumers by enabling successful malls, restaurants and other forms of recreation and tourism. Countries like Saudi Arabia gain valuable non-oil revenue in the form of increased Value Added Taxes (VAT) and by imposing a monthly fee on migrants who want to sponsor family members.

Many of these workers are from developing Southeast Asian countries such as India and Pakistan, and contribute greatly to their home country’s economy in the form of remittances, i.e sending money back home. Those who are facing unemployment or salary cuts are eager to be repatriated, especially since in many Gulf countries visas, rent, and even phone lines are linked to jobs, and expats have little to no social safety nets to fall back on.

Panicked” Indians applying to go back home crashed the Dubai aviation ministry’s website for applications in the process. The consulate says it has received around 200,000 applications for repatriation of expats from as many as 12 countries.

For some, closing businesses are forcing them to go home. For others, the cost of education is the major concern. The Emirates group, Uber’s Middle Eastern counterpart Careem, and hotels are some of the few major employers considering laying off large portions of their staff or reducing salaries.

Dubai has been one of the hardest hit, as expats form an estimated 92% of the population. Dubai based movers estimate that they’re getting up to seven calls a day to ship belongings abroad. It is extremely hard to gain permanent resident status in countries such as the UAE, and the costs of living and education are quite high and often provided by employers, which has made leaving the only option left for many laid-off workers across all fields.

The UAE has tried to offset the damage by granting automatic extensions to expiring work permits, waiving of work permit fees and fines, and providing interest-free loans and repayment breaks.

Meanwhile, governments in Kuwait and Oman are trying to mould the exodus into an opportunity to boost local employment. On the other hand, the Saudi Arabian government has been criticised for not taking enough measures to protect the local workforce.

While the Gulf countries have been trying to decrease their dependence on oil wealth and foreign workforce, it is not something that can be accomplished soon, especially given the great dependence of the Gulf economies on both those factors.

There is still too unavoidable a gap between the current skill of local workers and the training needed to compete with foreign professionals, making it hard to simply employ domestic workers in place of foreign ones. The pandemic, however, might not leave much of a choice.

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