Are these animals of different species?
No, all the animals are cows.
     src        edge_attr  dst
0      0   to the left of    1
1      0   to the left of   10
2      0   to the left of   18
3      1  to the right of    0
4      1   to the left of   18
..   ...              ...  ...
98    24           around    2
99    24           around    3
100   24           around   12
101   24             near   16
102   24             near   14

[103 rows x 3 columns]