Do the animals have different species?
No, all the animals are dogs.
    src        edge_attr  dst
0     0   on the back of    1
1     0   to the left of   10
2     0  to the right of    3
3     1   to the left of   10
4     1      in front of   18
..  ...              ...  ...
75   19  to the right of    5
76   19  to the right of    8
77   19               on    0
78   19   to the left of   13
79   19  to the right of    7

[80 rows x 3 columns]