BIG QUESTIONS

The two prefixes are not equivalent.

The military has been using musical instruments for strategic purposes ever since Joshua made those walls at Jericho come a-tumblin’ down.

One thing is for sure: It’s not because we find it funny. In fact, many people find tickling very unpleasant. So why does it make us laugh?

All-Stars on contending teams may have cause to try their hardest once they get to the Midsummer Classic, but what motivates them to get there? And I mean that in the most cynical sense.

And what happens to all the caffeine that gets stripped out?

Just as we humans cling to our air conditioners and plunge our heads into the freezer in the summer months, koalas have found a source of relief from stifling temperatures.

Not recently, of course. But what about their ancestors? The question is: Did the flightless birds of today, a family known as Ratites, evolve from flightless birds of yore or did their airborne ancestors lose the ability to fly over the millennia?

Toward the end of each half of a soccer match, the fourth official on the sideline hoists an illuminated sign over his or her head that displays a number.

These days, pants are our garment of choice. But for years, our ancestors draped themselves in tunics, robes, and gowns, until someone decided they were tired of having the wind up their skirt. So, what prompted the change? When, exactly, did two-legged t

The "anti-gravity treadmill" was originally invented by Robert Whalen, a biomechanics researcher at NASA Ames Research Center, in the 1990s. Hint: It *doesn't* defy the laws of physics.

The overarching drive in naming practices over time seems not to be toward giving names pre-determined masculine or feminine properties, but toward keeping them different.