The present study shows that these three Asian elephants are able to discriminate between all structurally related aliphatic odorants and all enantiomeric odor pairs tested.
The discrimination performance of the elephants concerning structurally related aliphatic odorants increased when the structural similarity of the odorants decreased.

The Asian elephants also demonstrated that they are at least as good, or better, at discriminating among aliphatic odorants and among enantiomeric odor pairs as other species.

The long-term odor memory of the Asian elephant was shown to be outstanding as the animals successfully remembered the reward value of a previously learned odor pair after one year of recess.

The next logical step would be to assess the olfactory sensitivity in the Asian elephant.