Carnivorous Mushroom Kills With 'Cookie Cutters'

Mushrooms look like peaceful things, minding their own business as they soak up valuable nutrients from the soil around them. However, a rare few kinds of mushrooms are secret killers, lacerating, poisoning, or even strangling hidden prey as they innocently stand around. Now researchers have determined that one of these silent assassins gets the job done with nanoscopic "cookie cutters."