Paleontologists believe bat-winged dinosaurs were clumsy fliers.
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Accessed on 22 October 2020, 2104 UTC.
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The Coronavirus Pandemic
As the Northern Hemisphere braces for a coronavirus-flu double hit, it’s unclear if it’ll be a deadly combo or one virus will squeeze out the other.
From the Archives
New aquarium videos show that sea butterflies of various shapes and sizes flutter through water differently.