They’re always hungry and thirsty. They’re sensitive to the weather. They travel in groups and overstay their welcome. And they’re, well, pests. Teenagers on summer vacation? Relatives ...

Meaning Behind the Song “Ants Go Marching” pulls some of its lyrics from “When Johnny Comes Marching Home,” a Civil War-era song that celebrated soldiers’ return from the war.

When it comes to getting around, we humans are hardly the most advanced species. Army ants -- yes, bugs -- have us beat. Let’s throw this thing into reverse and travel back to eastbound U.S ...