Explore daily insights on the USA TODAY crossword puzzle by Sally Hoelscher. Uncover expert takes and answers in our crossword blog.

Evolving roughly 27 different times in the long history of fish, bioluminescence—the biological production of light—is one of ...

From a distance, they look like tiny white dots floating on the sea. But get closer, and you’ll see people sitting on ...

Scientists have made a major breakthrough in the accuracy and speed at which often deadly pathogen infections can be ...