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Are ghouls real? That depends. Current science canāt prove that there are spirits walking through walls or screaming below floorboards. But humans have been spotting specters for as long as our species has existed. In PopSciās recent āMysteriesā issue, we explored seven mental and physical factors that can account for almost any creepy occurrenceāincluding some famous ones ripe for debunkingāand help to make sense of our perpetual urge to sleep with the night light on.
It's no secret dinosaurs possessed their own fair share of dirty habitsāmost bodies can get pretty gross, no matter the species. But dandruff? Nobody really saw that coming. A new study published in Nature Communications illustrates the discovery of some 125 million-year-old dinosaur dandruff fossils. The findings aren't just a quick excuse for making a bad Head and Shoulders quip, but also actually explain a mechanism by which dinosaurs did something nearly universal: shed skin.