Comparison of the olfactory detection threshold values (expressed as vapor phase concentrations) of the CD-1 mice for aliphatic n-aldehydes and those of other mammalian species (human data: 8; monkey data: 25, 27; bat data: 37). Data points of the three nonhuman primate species and of both bat species represent the lowest individual threshold value reported. Data points of the human subjects represent mean values. Data points of the mice represent the individual threshold values of the three animals tested per odorant. The shaded area indicates the range of individual detection threshold values in the mouse.