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 4:37 PM

Black Life Matters: Impact on the upcoming Presidential Elections in the US

George Floyd, 46, a black man died after a white police officer, named Derek Chauvin, held him down by lodging him down by a knee on his neck for almost nine minutes. He lapsed into unconsciousness saying, “I can’t breathe” and died shortly afterwards. His death came as the latest one in the line of killings of African-Americans by American law enforcement personnel. This incident sparked nationwide protests over systematic racism, unequal treatment of Black Americans and police brutality.

These protests are expected to impact the upcoming Presidential elections in the USA which is due in November 2020. The race issue in US Presidential elections has now become equally important as health care and the economy. According to a CNN poll, “With 42% of Americans calling race relations significant to their vote for president this fall”. There is a demographic split in the votes, where 61% black voters in 2020 say that it is imperative to prioritize race relations which is a jump from 34% in 2015. The opinion also varies between the followers of political parties as 60% of the Democrats and democratic-leaning independent voters and 18% of the Republicans and Republic-leaning voters have said that race relations are extremely important. 

President Trump opposed the protests very strongly and even threatened to send federal troops into the states to curb the protests. He came up with a series of tweets on the protests which shocked the young people of America into action and went global very soon. One of these tweets read: “Get tough Democrat Mayors and Governors,”. Referring to Biden, he added: “These people are ANARCHISTS. Call in our National Guard NOW. The World is watching and laughing at you and Sleepy Joe. Is this what America wants? NO!!!”. 

President Donald Trump will have a formidable opponent in former Vice President Joe Biden who is Democratic Party candidate in the Presidential elections. Joe Biden has a good following among the Black-American voters  Recently, in an interview, Biden said: “If you have a problem figuring out whether you’re for me or Trump, then you ain’t black.” 

The tweets and other statements of Trump invoking the spectre of lawlessness and turmoil are seen as a ploy to get back suburban voters who were disgusted by his handling of the pandemic by. A law and order crisis also allows Trump to go back to his 2016 campaign, where the campaign video reads “President Trump’s not always polite. Mr Nice Guy won’t cut it.” Trump has arguably benefited from the fact that his mishandling of the pandemic was pushed out of the picture with the media coverage of protests and riots.

On the other hand, Joe Biden, in his speech said “I won’t traffic in fear and division. I won’t fan the flames of hate. I’ll seek to heal the racial wounds that have long plagued our country, not use them for political gain. I’ll do my job, and I’ll take responsibility — I won’t blame others”. Biden is also promising to address the lack of racial equality under the law, which might give his potential presidency a reform, and something that could unite the Democratic Left fully behind him. 

At the moment, there is a rise in Voter registrations, volunteer activities and donations for groups that are linked to democratic causes. The surge in registration could be beneficial to the Democratic Party candidate Joe Biden. However, the presidential election is still over four months away and Trump’s campaign is well-funded with the backing of conservative media and loyal followings. To keep up the current narrative and build on the support on its back is going to be a herculean task for Biden’s campaign team.

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