His words end in a squawk. Jon's arms fling up, elbows stiff, fingers splayed. I hear the dread word: "Quicksand!" Quicksand is odd: a bed of silt becomes saturated with water so that its grains ...

The wobbly effect is known locally as a "cow belly," but we wouldn't recommend anyone try it. Quicksand can be dangerous, though humans can't actually drown in it. Bay Search and Rescue is ...