Q1. If 2 spiders find a dead insect at the same time, each spider will

make menacing gestures to scare off the other. If one spider backs down, that spider

gets nothing and the other spider gets the insect to itself. If both spiders back down,

they can share the insect. If neither backs down, the spiders will fight. The payoffs

resulting from the fight depend on the sizes of the spiders and are described below.