Figure 1. Proportions of 2-day-old rabbit pups responding in an oral activation test to (A) the V-IA sub-mixture (including the more RC-typical components for humans; white bar), the single odorants V and IA (grey bars) and the RC mixture (black bar) after conditioning to V-IA (n = 20 pups), or (B) the EA-B sub-mixture (including the less RC-typical components for humans), the single odorants EA, B and the RC mixture after conditioning to EA-B (n = 18).

In each graph, statistical differences are indicated by the letters on top of the bars (p<0.05).