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 4:40 PM

Black Lives Matter: Will it lead to reform of Police Forces in the USA?

The spontaneous eruption of the “Black Lives Matter” protest after the unfortunate death of George Floyd at the hands of Minneapolis police has once again put the spotlight on the operational methodology of the police department at different cities around the USA. There is a chorus across the country, more so in the Democratic Party strongholds to do fundamental reorganization of the police force by focussing on community policing. Some of the extreme and radical activists have gone so far to demand “defund the police” and re-distribute its budget to marginalized communities, municipal corporations and necessity institutions.

“There is no magic switch to turn off and boom there’s no police department,” said Alex Vitale, a sociology professor at Brooklyn College. She released a book named ‘The End of Policing’. The book has become a manifesto for protests and police-reform advocates. The defund development calls for diminishing networks' dependence on police for various administrative problems like, observing the homeless, settling household quarrels, restraining understudies, reacting to upheavals by individuals with mental illness, paring down violence in neighbourhoods, and proportional reaction to minor inconveniences like somebody attempting to pass a fake $20, the allegation that set off the police call that resulted in Floyd's demise. The funds saved by reducing the workload of police could be utilised by social and community workers to resolve street feuds. “When we talk about de-funding the police, what we're saying is invest in the resources that our communities need,” Black Lives Matter co-founder Alicia Garza told NBC News.

There are cities which have approached this reform in a positive manner. New York Mayor Bill de Blasio has decided to shift the money from NYPD budget to youth recreational programs. A whopping $150 million is being pulled out of the LAPD by Los Angeles Mayor Eric Garcetti. This money is proposed to be invested in healthcare systems and build peace centres. Similarly Portland and Oregon have consented to pull police from state funded schools. A few Minneapolis organizations, including the government funded school region, the University of Minnesota and the Park and Recreation Board, have moved to diminish or end their agreements with city police.

Dallas has earlier experienced the positive results of diverting emergency mental health calls, not only on hospitals but also police to non-police establishment when in 2018 RIGHT Care  was provided $3 million funding to look after these issues. Since the program started, ambulances and emergency vehicle calls for individuals encountering emotional wellness inconveniences have declined in the south-local region of Dallas where the program works, which has opened up officials to manage different calls, authorities said. This transition was also done after the outcry over the shooting of a schizophrenic man holding a screwdriver in 2014 and subsequent defence of police personnel by the police boss David Brown.

Law enforcement officials and conservative activists believe that de-funding police would lead to an upsurge in criminal activities. President Donald Trump has started making this as a key plank of his re-election campaign while the Former Vice President Joe Biden, who is running against Trump, also came out against de-funding police.

It is therefore too early to predict whether the current phase of “Black Lives Movement” after the death of George Floyd will be successful in bringing some substantial reform in the working of police forces across the cities of the US or the momentum will be lost with some incremental tweaking here and there.  

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