In 1997, Maryland was one of five states the U.S. Department of Agriculture selected for a pilot study on tick populations. At that time, residents on Gibson Island were concerned about ticks, so researchers set up a Rube Goldberg-like device that allows deer to unwittingly kill off the pests.
Known as 4-Poster Deer Treatment Systems, the contraptions are set up with bins containing corn, which acts as bait for deer. As a deer walks inside the system, it rubs against paint rollers,...
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