Add Yahoo as a preferred source to see more of our stories on Google. Yellow snot is gross, but does it mean you have an infection? Here's everything you need to know about it. Snot, mucus, phlegm ...

KENSINGTON, Maryland (AP) — Master builders of the sea construct the equivalent of a complex five-story house that protects them from predators and funnels and filters food for them — all from snot ...

Respiratory infections like the common cold often start with a stuffy nose, and this minor ailment is sometimes followed by pain and tenderness around the cheeks, eyes and forehead — a telltale ...