History is full of examples of uncontrolled
populations : release in Australia of a little colony of rabbits
which descendants has spread on
all the continent; the east United States invasion by the bombyx’s
chenille escaped from a laboratory
of Boston; the grippe waves which seams sleep during few years
before scouring the world and disappear
again before making a new cycle.
Some populations grow quickly
in numbers, others disappear very fast, increase and decrease according
to a regular periodicity or obey to strange attracts laws and chaos.