In the study of why and how animals look the way they do, color is king—at least, the range of color humans can see. A ...

A mysterious thick fog has swept across the US with multiple communities reporting a "burning chemical-like smell," akin to a similar event last year when 70 million people were engulfed in dense fog.

The incident has been likened to a similar event last year when 70 million people were engulfed in dense fog, raising concerns about a secret 1950s military program being repeated. The fog event ...