After all, he says, feces are full of volatile chemicals that predators could home in on. (sciencemag.org)
Such a device could be used in homeland security applications to detect volatile chemicals and in medical diagnostics, such as a device to test blood - alcohol level. (sciencedaily.com)
To find their hosts, mosquitoes sense heat, CO2, moisture, and certain volatile chemicals; which cues they use depends on the species. (sciencemag.org)