Ah, Opening Day! What a time to be alive. After a long, cold offseason, the mitts are poppin', the bats are crackin' and the fans are ... debating about whether a mascot's mouth is open or closed? America's pastime, baby!

As is the case with most very dumb things these days, it all started with a tweet. On the eve of baseball's Opening Day, one fan asked a simple question.

Chances are you've never thought about this question before, probably because the answer seems rather obvious. It's a closed-mouth grin, right? Or maybe you just haven't been looking closely enough.

 This theory apparently struck a chord with several open-mouth truthers. For some, it was a mind-blowing revelation.

Personally, I think the case for open-mouth is a pretty weak one. The dimple on the end of the bird's beak only makes sense if it's a closed grin, and the progression of logo throughout franchise history suggests it's closed ... unless the bird suddenly found something to get really excited about.

In any case, it's a pretty ridiculous discussion, and at least some people decided to have some fun with the absurdity of it.

The important thing is a bunch of people decided to spend a very exciting Opening Day debating over a bird's mouth. Welcome to baseball season.