Submission + - Humans smell in Stereo (nature.com)
Xemu writes: "Humans can locate an odour source thanks to a feature called stereo sniffing, says researchers in an article just published in Nature Communications. To further enhance odorant location capabilties, mammals combine serial sampling with bilateral nasal cues. Much like your average teenager in a dark basement would locate that smelly sock. Blocking one nostril makes it harder."