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How are sand dunes formed and why do they even exist?
The population debate: Are there too many people on the planet?NEWS
We may finally have figured out which group of animals evolved first
Pfizer covid-19 vaccine: Is it the breakthrough we’ve been hoping for?
Animals infected with covid-19 could undo efforts to stop the pandemic
Weird space radio signal tracked to its source for the first time
Squid-like creature that looked like a giant paperclip lived 200 years
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