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In order to test your hypothesis that strange lizards are more threatening than neighbor lizards, you decide to stage some encounters among your residents. If you look again at the territory map,

you will see that the territories of "orange" and "blue" do not touch. Likewise, "red" and "green" are not neighbors.

To arrange a meeting between non-neighbors, you lure one lizard off of its territory using thrown bits of food as bait (this was actually done in a scientific study; see references at the end of this module). You decide to keep a record of the encounters you observe this way.

In the following pages, you will progress through an exercise that involves watching animated lizards and recording their behaviors.