The spray causes inflammation of the eye capillaries and all other mucous membranes, resulting in immediate temporary visual impairment, difficult breathing, coughing, choking, sneezing, severe burning sensations to the eyes, nose, throat and skin, and nausea, with acute symptoms and discomfort lasting for 45 minutes. There is no permanent damage.

Link via Say Uncle | Photo: J&L Self Defense Products

WebUrabanist has compiled a number of posts from their sister site, Webecoist. Together, the posts add up to over 100 super interesting flora and fauna species. I think my favorite is the 10 Strangest Animal Self-Defense Mechinisms.