The short answer is, nothing really happened to them. In fact, chances are good you haven't really gone out looking under any garden rocks in recent years.

Where did the Rollie Pollies go?

You will most often find them hiding under logs, leaf piles, stepping stones, landscape timbers, rocks, trash cans, garden debris, flower pots, mulch, compost, or other dark, damp areas. You may also find roly-polies in your storage building, basement, shed, or garage.

Are pill bugs still around?

There are pill bugs throughout the world, and they usually live in areas where there is high moisture. Because their bodies do not hold water, they stay hidden during the day and are active at night. They commonly live under landscape timbers and flowerbed mulch.