Are these animals the same species?
Yes, all the animals are elephants.
    src        edge_attr  dst
0     0   to the left of    8
1     0  to the right of    4
2     0  to the right of    7
3     4             near    7
4     4   to the left of    5
5     4   to the left of    0
6     4             near    5
7     4   to the left of    7
8     5             near    7
9     5             near    4
10    5  to the right of    4
11    5             near    8
12    5  to the right of    7
13    5   to the left of    8
14    7  to the right of    4
15    7             near    5
16    7             near    4
17    7   to the left of    0
18    7   to the left of    5
19    7   to the left of    8
20    8             near    5
21    8  to the right of    0
22    8  to the right of    7
23    8  to the right of    5