Table 1. Subjects’ identity and partners’ breed and body size information.
| Subjects | Sex | Breed | Age | Familiar partner breed | Familiar partners’ age | Familiar partners’ sex | Stranger dogs breed | Familiar and stranger body size |
|---|---|---|---|---|---|---|---|---|
| Lizzy | F | French Bulldog | 7 | German shepherd-mix | 9 | F | Mix-breed | Large |
| Bounty | F | Australian shepherd | 9 | Australian shepherd | 5 | F | Bernese Mountain dog | Large |
| Xena | F | Hunting dog-mix | 7 | Hunting dog-mix | 10 | M | Staffordshire Bullterrier | Large |
| Neela | F | Australian shepherd | 7 | Australian shepherd | 3 | F | Labrador Gordon Setter-Mix | Large |
| Funny | F | Dachshund-mix | 5 | Dachshund-mix | 6 | F | Mix-breed | Small |
| Nell | F | Chinese Crested | 7 | Chinese Crested | 8 | F | Shiba Inu | Small |
| Achuk | F | Chesapeake bay retriever | 8 | Chesapeake bay retriever | 6 | M | Labrador | Large |
| Jessy | F | German shepherd-mix | 8 | French bulldog | 7 | F | Mix-breed | Small |
| Yori | M | Mix-breed | 7 | Staffordshire Bullterrier | 8 | F | Hunting dog-mix | Large |
| Aiko | M | Australian shepherd | 4 | Bernese Mountain dog | 4 | F | German shepherd-Mix | Large |
| Toivo | M | Shiba Inu | 6 | Shiba Inu | 3 | F | Mix-breed | Small |
| Charlie | M | Dachshund | 5 | Dachshund-mix | 4 | F | Dachshund-mix | Small |
| Elrond | M | Chesapeake bay retriever | 6 | Chesapeake bay retriever | 11 | F | Staffordshire Bullterrier | Large |
| Gizmo | M | Mix-breed | 9 | Mixed-breed | 7 | F | Shiba Inu | Small |
| Charly | M | Dachshund-mix | 6 | Dachshund-mix | 4 | F | Dachshund-mix | Small |
| Cookie | M | Cocker spaniel | 6 | Labrador | 8 | M | Chesapeake bay retriever | Large |