Are the animals of different species?
Yes, they are sea gulls and birds.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of   14
2     0   to the left of   13
3     5   to the left of    8
4     7  to the right of    0
5     8  to the right of    5
6     9            below   12
7    10               in    9
8    11  to the right of   12
9    12   to the left of   15
10   12            above    9
11   12   to the left of   11
12   12               in    3
13   13  to the right of    0
14   14  to the right of    0
15   14               on   13
16   15  to the right of   12
17   15               in    9