CPM Report No.: 02-87
By: Bruce Edmonds
Date: 18th January 2002
To be presented at: the Network on Evolvability in Biological and Software Systems Symposium on "Evolvability and Individuality", St. Albans, Hertfordshire, UK.
To investigate this a 3D artificial world with creatures evolving on a sand pile was created. The creatures move, eat, turn, mate and propagate depending upon tree-structured program genes which are interpreted in each situation to produce the behaviour. These genes are type-sensitively tree-crossed when mating occurs to make the genome of the offspring. The environment is tuneable so that different sizes and frequencies of unpredictable avalanches occur.
Initial results seem to support the hypothesis. If it is true then this has implications for evolutionary explanations of behaviours, since it may not be the particular behaviour that is important but the range of behaviours that is significant. This has implications for the designers of animats and robots.