 With all of the water floating around Wyoming, everyone should be prepared for mosquitoes. In fact, as I stand here near the Bighorn River, a swarm of these tiny insects has already enveloped me. If you have ever wondered why some people are more attractive to mosquitoes than others, you can blame sweet-smelling sweat, carbon dioxide, octanol, and other compounds that make up body odor attract mosquitoes. Those who sweat more attract more. A large part of the mosquito's sense of smell is developed to sniffing out blood sources. Of the 72 types of odor receptors on a mosquito's antennae, at least 27 are tuned to detect chemicals found and perspiration. So the next time you're out and about, don't be like me and forget your mosquito repellent. From the University of Wyoming Extension, I'm Brian Sebade, exploring the nature of Wyoming.