Monday, 12 June 2017
Tens of thousands of bison graze;
they stir up insects;
birds fly about the bisons' feet to catch the insects;
wolves follow, hoping to catch a calf;
the wolves sheer off as mounted human beings approach;
eagles fly above, hoping for something bigger to be flushed by the herd.
Here, at least nine species interact:
whatever the eagles swoop on.
It is good to read a narrative that makes us aware of interacting species, not just human beings. When Poul Anderson imagines a planet, he has to create its ecology ex nihilo.