“Ground bees are very seasonal and often confused for yellow jackets,” explained Evans, an award-winning research entomologist at USDA’s Bee Lab at Beltsville Agricultural Research Center.

From the wilds of Scotland to the deserts of Jordan, here's our pick of the top 20 hikes from around the world. Make some ...

Paityn Noe, who won the Bix 7’s High School Challenge two years ago and placed eighth last year as a freshman at the ...