What are the animals called?
The animals are cows.
    src        edge_attr  dst
0     0  to the right of   30
1     0   to the left of   26
2     1  to the right of    6
3     1  to the right of    7
4     1  to the right of   25
..  ...              ...  ...
64   30   to the left of   26
65   31   to the left of    1
66   31   to the left of    7
67   31   to the left of   25
68   32  to the right of   10

[69 rows x 3 columns]