Pierre Alferi, p.1
ABODE AND TERRITORY OF THE STICKLEBACK
To perform this experiment
you place two male
sticklebacks at opposite
angles in an aquarium. Soon
each builds a nest whose opening
is marked by a colored thread.
Then if one ventures beyond
a phantom oblique line
the other repels it immediately
energetically successfully
regardless of its size. By contrast
a family of birds prey
leaves between their lair
and their hunting ground
a free zone. In this way
we believe they avoid
devouring themselves.