If you've ever seen small, cone-shaped pits in fine soil or sand, you've likely found an antlion trap. These pit-building insect larvae hide beneath the surface, waiting to ambush ants and other small ...

If you are like me, you might have thought these conical pits were a type of ant hill. Quite to the contrary, as unsuspecting ants that stumble into the pit slide to the bottom, they are quickly ...