Are these animals of different species?
No, all the animals are zebras.
   src        edge_attr  dst
0    2   to the left of    7
1    2   to the left of    4
2    3           beside    8
3    4  to the right of    2
4    4  to the right of    8
5    7  to the right of    2
6    7  to the right of    8
7    8   to the left of    7
8    8   to the left of    4
9   10      in front of    6