Select four items and hit the Submit button. If you guessed correctly, the category and color will be revealed. (Yellow is ...

If you look up and notice a bluer-than-average sky during fall months, your eyes aren’t playing tricks on you. It’s simply ...

The megalodon ruled the oceans for millions of years — then vanished. But what if it didn’t disappear, only evolved? Some experts believe deep-sea adaptations could hide a modern descendant of the ...