I know we've had reason to worry that bears and cats are trying to take over the world.
But I now believe that squirrels have joined the alliance. They're currently working out and bulking up, in preparation for Navy SEAL-like attacks on the general populace.
My evidence?
I present to you...
NINJA SQUIRREL

A rare photo of the squirrels' training regimen: high-protein birdseed and windowscreen ab workouts.
I'm locking the doors and getting a BB gun.