Are both these animals of the same type?
No, they are sharks and dogs.
    src        edge_attr  dst
0     0  to the right of    5
1     0  to the right of   11
2     0  to the right of    6
3     0  to the right of    1
4     0  to the right of    9
5     0  to the right of   12
6     1   to the left of    0
7     1  to the right of    5
8     1  to the right of   10
9     5   to the left of    1
10    5   to the left of   12
11    5  to the right of   10
12    5   to the left of    0
13    6   to the left of    0
14    6  to the right of   10
15    7          holding    4
16    9   to the left of   12
17    9   to the left of    0
18    9  to the right of   10
19   10   to the left of    9
20   10   to the left of   12
21   10   to the left of    6
22   10   to the left of    1
23   10   to the left of    5
24   11   to the left of    0
25   12  to the right of    5
26   12   to the left of    0
27   12  to the right of    9
28   12  to the right of   10