Lac insects carry a yeast-like symbiont that produces a commercially important bright red pigment, revealing insights about insect-microbe symbiosis. 

Distinct microRNA signatures in the saliva of people with endometriosis provide a basis for a non-invasive diagnostic test and shed light on disease biology. 

Absence of cysteine in mice coaxed fat-storing cells to burn energy, causing weight loss and offering potential therapeutic targets to improve metabolic health.