Bat breath reveals metabolic substrate use in free-ranging vampires
The article itself is all about using a vampire bat's breath to find out what it's been eating lately (apparently they prefer cattle to rainforest mammals).
Personally, I want to know who gets the job of harvesting vampire bat breath (was it the same person who came up with the idea, or some poor lab assistant?) - and what they say when people ask them about their day...
Voigt, C., Grasse, P., Rex, K., Hetz, S., & Speakman, J. (2008). Bat breath reveals metabolic substrate use in free-ranging vampires. Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 178(1), 9-16. doi: 10.1007/s00360-007-0194-z