Table 1. Description of the tested horses clustered in two groups according to their bonds (Pair 1: Gina/Calippo; Pair 2: Julia/Betsie).
In addition to the information regarding sex, age, breed, test timing, we provided the color of the fur and the relative color of the mark (yellow or blue) that we selected in order to be clearly visible by both experimenters and tested horses.
| Name | Sex | Age | Breed | Hour of the test | Coat color | Mark color | |
|---|---|---|---|---|---|---|---|
| Pair 1 | Gina | female | 10 years | Mixed breed | 11.00 am | Grey | Blue |
| Calippo | gelding | 21 years | Italian saddle | 12.00 am | Sorrel | Yellow | |
| Pair 2 | Julia | female | 24 years | Budjonny | 03.00 pm | Sorrel | Yellow |
| Betsie | female | 22years | Quarter horse | 04.00 pm | Roan | Blue |