Ok, maybe not... but it did get your attention didn't it? I spotted these unusual piles of soil in the Mystery but couldn't see any holes where it came from.
http://farm4.static.flickr.com/3586/...a441a06b08.jpg
Giant Moles! Wavertree Playground by fortinian, on Flickr
http://farm6.static.flickr.com/5025/...a8fbfd1732.jpg
Giant Moles! Wavertree Playground by fortinian, on Flickr
Any ideas?