http://www.newsweek.com/125-million-year-old-dinosaur-found-bad-case-dandruff-945760

Researchers have discovered the oldest known case of dandruff—in feathered dinosaurs and early birds which lived around 125-million-years-ago, according to a new study published in the journal Nature Communications.

Paleontologists from University College Cork (UCC), in Ireland, say their findings are the first evidence for how dinosaurs shed their skin.