Are the animals the same type?
Yes, all the animals are sheep.
    src        edge_attr  dst
0     0  to the right of   11
1     0  to the right of    6
2     3  to the right of   10
3     3  to the right of   12
4     3  to the right of    8
5     3  to the right of    7
6     3  to the right of    5
7     3  to the right of    9
8     3   to the left of    4
9     4  to the right of   12
10    4  to the right of    9
11    4  to the right of   10
12    4  to the right of    3
13    5   to the left of    9
14    5   to the left of    3
15    6   to the left of    0
16    6  to the right of   11
17    7  to the right of   16
18    7   to the left of   10
19    7   to the left of    3
20    7   to the left of    9
21    7   to the left of   12
22    8   to the left of   10
23    8   to the left of   12
24    8  to the right of   16
25    8   to the left of    3
26    8   to the left of    9
27    9  to the right of   10
28    9  to the right of    8
29    9  to the right of   12
30    9  to the right of   16
31    9   to the left of    3
32    9   to the left of    4
33    9  to the right of    5
34    9  to the right of    7
35   10   to the left of    9
36   10  to the right of    7
37   10  to the right of   16
38   10  to the right of    8
39   10   to the left of    4
40   10   to the left of    3
41   11   to the left of    0
42   11   to the left of    6
43   12  to the right of   16
44   12   to the left of    3
45   12   to the left of    4
46   12  to the right of    7
47   12  to the right of    8
48   12   to the left of    9
49   16               in    2
50   16   to the left of    9
51   16   to the left of    7
52   16   to the left of   10
53   16   to the left of   12
54   16   to the left of    8