Weird turf blister suddenly appears

(CBS NEWS) — OK, here's a really weird one for all of you. Like seriously weird. I'm not even quite sure what's going on or how to really describe it. Just watch the video and you'll see what I mean.

So what exactly is that? I mean, it looks like the ground is bubbling up or something, right? The caught-on-tape moment was posted by YouTube user UrbanGardenSupplyPDX who writes:

Found this out behind our store during a customer appreciation party with live music. Portland, Oregon.

Read the full story ›