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