“How does a nose generate the signals that the brain registers as smell? The conventional theory says it’s down to the different shapes of smelly molecules. But fruit flies have now distinguished between two molecules with identical shapes, providing the first experimental evidence to support a controversial theory that the sense of smell can operate by detecting molecular vibrations.” from New Scientist, “Fly sniffs molecule’s quantum vibrations.”
Those who followed the developments of the vibration theory of olfactory since the publication of Luca Turin’s work will be interested to know that there has been more work on the topic. The results and the discussions are worth reading.
More reading on the topic:
Do Vibrating Molecules Give Us Our Sense of Smell?
Thanks to Tania and Jake for the links!