In the Dec. 10 SN: Star-starved galaxies, animal math, Parkinson’s roots in the gut, supersolid success, Celebrex’s controversial heart risk, a prionlike memory protein, yo-yo dieting’s downside, blue begonias and more.
SHAKE YOUR TAIL FEATHER This feathered dinosaur tail is preserved in a 99-million-year-old lump of amber. Similarly stuck are several ants, a beetle and bits of foliage.
Ryan C. McKellar/Royal Saskatchewan Museum
MISMATCHED OFFSPRING When macaroni penguins convene at a breeding site (shown), females lay some of the most size-mismatched eggs known among birds.
FOREST CHANGE Clearing forests and changing landscapes might affect how many people develop Buruli ulcer. The disease is caused by bacteria shown here (in red) in a section of otherwise healthy mouse tissue (in blue).
Angèle Bénard, Claudia Sala and Gerd Pluschke/PLOS ONE 2016