Since the early 20th century, there have been claims that dinosaurs were warm-blooded. Bharath Kishore

Hot fuss: is warm‑blooded dinosaur theory right or wrong?

Mark Twain reputedly said it wasn’t what he didn’t know that bothered him, but what he knew that wasn’t true. A recent contribution on dinosaur physiology in Nature, by palaeontologist Meike Köhler and…

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