Table 1 Number of horses reaching the success criterion according to the number of sessions.
From: Female horses spontaneously identify a photograph of their keeper, last seen six months previously
S2 | S3 | S4 | S5 | ||
|---|---|---|---|---|---|
Training stage | Recurrent faces vs. black circle | 3 | 5 | 3 | |
Recurrent faces vs. novel objects | 3 | 8 | |||
Recurrent faces vs. novel faces | 3 | 3 | 3 | 2 | |
