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This Week In Science!

author

Chris Carpineti

Senior Video Editor

clockSep 3 2021, 10:43 UTC

Top stories from this week in science. Image credit: (c) Iflscience 

Leaded Petrol Finally Eradicated From The World As Last Country Ends Use 

The age of leaded gasoline is officially over, marking a well overdue end to a major threat to the health of humans and the planet. Over 40 years after the first bans on leaded petrol around the world the last country, Algeria, officially used up its supplies in July 2021 and the world is now leaded gas-free, the UN has declared.  

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COVID-19 Poses Much Larger Blood Clot Risk Than Vaccines, Huge Study Finds 

Following the rollout of COVID-19 vaccines, concerns quickly arose over whether they could increase the chances of deadly blood clotting events. Now, a huge study involving over 29 million people has found a slight increase in the risk of blood clots following both the Oxford-AstraZeneca and the Pfizer-BioNTech vaccine – but that the risk of clotting events is far greater following infection of COVID-19. 

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Baby Shark Born In Female-Only Tank May Be Species' First "Virgin Birth" 

Aquarium staff in Italy were recently surprised by the birth of a baby shark in a tank that’s home to just two females. Of course, it’s not a miracle, it's badass sharks demonstrating they don’t need no male. Parthegneisis has been seen in many shark species, however, this is the first time it’s been seen in smooth-hound sharks meaning it could be more widespread than thought.  

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Texas 6-Week Abortion Ban Comes Into Force After Supreme Court Fails To Act 

A controversial abortion law has come into effect in Texas after the Supreme Court failed to respond to an emergency request to block it pending a review of its constitutionality. This is the strictest abortion ban yet in the US, making abortion after six weeks illegal, and allowing any private citizen to bring a civil suit against anyone who assists a pregnant person seeking an abortion. 

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Man Can Voluntarily Adjust His Pupil Size, Something Thought Scientifically Impossible 

Voluntary control over the autonomic nervous system is a superpower beyond the reach of most humans, yet a 23-year-old man from Germany appears to have acquired this remarkable ability. He shocked doctors by being able to control the dilation and constriction of his pupils at will, something that had been deemed scientifically impossible.  

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LISTEN NOW - We launched a podcast!  

Join us on our new adventure as we launch our podcast, IFLScience The Big Questions. We are joined by experts from a range of fields as we ponder some of the biggest questions in science, technology, and humanity. For our first episode, we’re starting with a biggie: Are we alone in the universe?  

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