Are these animals of different types?
No, all the animals are elephants.
    src        edge_attr  dst
0     0   to the left of   21
1     0  to the right of    2
2     0   to the left of   15
3     0   to the left of   14
4     1   to the left of   21
..  ...              ...  ...
88   27  to the right of    8
89   27  to the right of   16
90   27  to the right of   13
91   27  to the right of   25
92   28   to the left of    7

[93 rows x 3 columns]