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Because the Cretaceous creature's closest living relative is in South America, the scientists posit a land link connecting South America, Antarctica and Madagascar
Joint: When cannabis is rolled into papers and smoked in the style of a cigarette
Adult daily smokers with ( n =17) and without ( n =20) ADHD completed fMRI scanning under each of three conditions: (a) smoking as usual+placebo
Robert Reisz and collaborators announce the "discovery of an embryonic dinosaur bone bed from the Lower Jurassic of China, the oldest such occurrence in the fossil record." The find includes the remains of many individual dinosaurs at different stages of development
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