Thee cat from the Dong family saw the rat in the jar stick up its pointed ears, stare with a pair of pitch-black eyes, shake its red whiskers and squeak.

东家的猫看到瓮中的老鼠，竖着两只尖尖的耳朵，瞪着一双漆黑的眼睛，抖动着红红的胡须，吱吱吱乱叫。

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The team hypothesised that the rat was trying to optimise the force applied by the whiskers making contact with the object as well as bringing as many extra whiskers as possible into contact with it.

这个小组假设，老鼠正试图优化触须与目标物进行接触所施加的力，并且带来尽可能多的另外触须与之接触。

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The bait contains dye, which will be measured in a black-light examination of rat whiskers to reveal how quickly subway critters consume the ContraPest and whether a change to a more flavorful recipe might be needed.

WSJ: MTA Sets New Tactic in Rat War