Some dogs lift their leg to pee as a way of marking their territory. But they also do it as a way of letting other dogs know they're the baddest canine in town.

BIG QUESTIONS
It's what every shower-taker dreads—but it doesn't have to be this way.
Cricket chirps can reach 100 decibels. So why do we use them as a byword for ‘silence’?
You’d be laughed out of the wedding party for suggesting garlic for a bridal bouquet today, but it used to be pretty common.
The key to holding court? A fresh can of tennis balls.
The concave circles built into the sides of plastic milk jugs are an important part of their design.
Horizontal lines run across the rear glass on most cars. Here's why.
Did 17th-century immigrants to the 13 colonies have modern British accents? First, we need to figure out what a “British accent” is.
All locusts are grasshoppers, but not all grasshoppers are locusts.
As brothers Bob and Doug McKenzie on ‘SCTV,’ actors Rick Moranis and Dave Thomas made ‘hoser’ popular—and there are plenty of theories about the word’s origin.
Chris Evert’s tennis bracelets made tennis bracelets a thing. But the origin story gets mistold quite often.
The adorable bear honey bottle design helped launch Dutch Gold Honey to national success. Here’s how it came to be.
Too much of anything, even a helpful or healthy thing, can hurt you. Medication? Definitely. Water? Absolutely. Exercise? You bet. Vitamins? Quite possibly.
Adaptability comes in handy. So does a belt.
Sadly, ‘PU’ isn’t an initialism for “Pretty unsavory!”, “Putrid, ugh!”, or even “Please use (deodorant)!”
Many Amish believe photos are forbidden. So how can they do anything requiring a photo ID?