- Not only do catnip and silver vine hold a special place in felines’ hearts, research finds the intoxicating chemicals in these plants also protect cats from mosquito bites. The characteristic response of domestic cats to plant iridoids allows them to gain chemical defense against mosquitoes. https://www.science.org/doi/10.1126/sciadv.abd9135?utm_campaign=SciMag&utm_source=Social&utm_medium=Twitter 12 comments science