Some bugging out over 'killer' wasps -- themorningcall.com: "The female cicada killer digs a hole about three quarters of an inch wide and about two feet deep and goes hunting for cicadas. After catching a bug and stinging it with paralyzing venom, the cicada killer pulls it into the hole, lays an egg on it and waits for her babies to emerge and munch on the powerless, still-paralyzed cicada."
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That's what they do when they aren't busy chasing exterminators across the lawn and down the street. Those things are huge.