Wolves create a “landscape of fear,” slowing deer-car collisions
Wolves scare deer away from highways, a marked economic and ecological benefit.
arstechnica.com
That article was pretty interesting. What I got from it is that we just don't know what causes obesity and it could well be caused by some really far out crazy factors some of which are hard to recognize, rather than just weak people overeating.
And that notion of widely, seemingly disparate, things causing effects that are surprising or currently unknown or unproven, is pretty fascinating and far reaching. It seems to apply to loads of different things and concepts