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

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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 4:36 PM

Black Lives Matter: Solidarity protests in Western Europe

The killing of the African-American George Floyd in the hands of Minneapolis police commanded world attention. It witnessed Pan-American protests against police brutality and racism. Countries across the world have stood in support of these protests against racial violence. These protests in America have triggered a number of protests across Western Europe to localise them and condemn racism in their own countries.

Protests against racial violence and police brutality drew large numbers across European capitals and other prominent cities as well. Paris protests alone saw an estimated 20000 people near the Eiffel Tower who protested against the death of George Floyd. These protesters tried to localise the issue of racial violence and police brutality by taking up the case of Traoré, a young black man whose family claims that he died due to suffocation under police custody at Persan (north of Paris) in 2016. These protests have been going on consistently for over a week. Despite the police ban on demonstrations in Paris due to the risk of COVID-19, the demonstrations couldn’t be curbed. Parallel protests were also reported in other cities of France like Lyon, Rennes and Marseille.

Berlin also has been sustaining its ‘Black Lives Matter’ protests for over a week. Demonstrations were held in other German cities such as Cologne, Frankfurt and Dusseldorf. The Bayern Munich footballers wore T-shirts with slogans that read ‘Red card against racism- Black Lives Matter’ in their match against Leverkusen to raise awareness against racial violence. Various German activists believe Floyd’s death has not only triggered anti-racist protests but also multiple questions regarding equitable distribution of resources and representation of diverse races that co-habit in Germany.

In the United Kingdom, too, despite the COVID-19 risk, a large number of protestors stood in solidarity with the U.S protests. In Bristol, demonstrators pulled down the statue of slave trader Edward Colston on 7 June, 2020. Even though these protests were against racial violence, the chords of the protests mainly struck with issues of blacks during COVID-19. British government data showed that blacks living in British were four times more likely to die from COVID-19 as compared to whites. This discrimination by the virus can be attributed to the institutionalised nature of racism and the lack of equitable access to resources for minorities living in Britain.

Protests were held widely in Spain. The U.S embassy outside Madrid has become one of the hotspots for protestors to gather. Hundreds gathered to mourn the death of Floyd and observed silence for him. The city of Budapest too observed silence and chanted songs outside its U.S embassy.

European media has also played a key role in actively condemning Trump for his actions of using military force to tackle the protests. While the French Newspaper Le Monde in its editorials has dubbed Trump as ‘President of division’ the Spanish newspaper El Pais’s headlines read ‘The U.S. Faces Its Worst Racial Conflict in Half a Century’. Trump’s actions to use federal force and active duty military personnel have made the European media to cover the protests more extensively. Newspapers coupled with social media have acted as catalysts in spreading the cause of the protests at a much faster rate.

Floyd’s killing sparked protests against racial violence and systematic racism around the world. However, it resonated at a deeper level with Western European countries primarily due to their rising number of immigrants from African and Arab countries. These countries, for decades, have struggled with accommodating these minorities equally with the mainstream population. The approach to localise these protests has helped to not only denounce racial violence in America but also in their own home country. The nature and extent of these protests have pointed out that governments no longer have the luxury of gradualism and have to instead take up swift actions to eliminate institutionalised racism and police brutality.

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