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Fruit Flies Smell Deuterium

• arclein
The fruit flies, which are known to have a strong sense of smell, showed a definite preference for the molecule with more hydrogen and their aversion to the deuterated molecule grew as more hydrogens were replaced. When fruit flies that had been genetically modified to have no sense of smell were used, they showed no preference.

1 Comments in Response to

Comment by Powell Gammill
Entered on:

I am STUNNED that any animal could detect the difference between regular hydrogen and deuterium.   Nice report and a nice experiment.  I now wonder at why or how such an ability evolved?

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