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.
SAFETY FIRST To study the air flow produced when birds fly, scientists trained a Pacific parrotlet named Obi (above) to fly through laser light. To protect the bird’s eyes, custom-made laser goggles were a necessary precaution.
E. Gutierrez/Lentink Lab/Stanford Univ.
SPIDER DAD OF THE YEAR The small Manogea males buck the trend among spiderkind, giving up their solitary ways to stay near their offspring and fight off attackers.