This model demonstrates the phenomenon of "Batesian mimicry." It simulates the evolution of monarch and viceroy butterflies from differently colored species to indistinguishable mimics and models.

For detailed instructions on using the program, take a look at the info window from the Mimicry model.

Download the StarLogoT source code for the Mimicry model:
Download mimicry

To run this file you need StarLogoT2002 for the Macintosh.
(download StarLogoT)

Click on one of the pictures to see a quicktime movie of the model:
Mut-rate 5%, Memory 22, Frame taken every 25 ticks. File size = 190K