Researchers have reportedly found fossilised dandruff in association with the remains of small, carnivorous, feathered dinosaurs (https://www.theguardian.com/science/2018/may/25/oldest-known-case-of-dandruff-found-in-125-million-year-old-dinosaur). They suspect that the presence of feathers forced such reptiles to modify their normal skin shedding in one piece, replacing it by losing small, localised items of skin (i.e. dandruff). Modern birds also produce dandruff but in a form that facilities cooling of the body (probably more energetically-demanding in modern birds due to their much longer flights, than in microraptors and the earliest birds).
This blog may help people explore some of the 'hidden' issues involved in certain media treatments of environmental and scientific issues. Using personal digital images, it's also intended to emphasise seasonal (and other) changes in natural history of the Swansea (South Wales) area. The material should help participants in field-based modules and people generally interested in the natural world. The views are wholly those of the author.
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