These small black-and-white mammals are best known for the foul-smelling oily liquid they expel when threatened. Skunks do not make use of this weapon unless severely provoked and then only after raising their tails in a warning display. Most animals quickly learn to avoid skunks because the odor of skunk spray is so strong. In addition to stinking, the spray causes choking and tearing of the eyes. What do researchers believe is essential to successfully neutralizing the skunk smell? Discuss