Table 1.

Evolving a means to avoid predation.

		b>c [b=2, c=1]	b<c [b=1, c=2]
q1<q2 [q1=0.2, q2=0.8]	s1<s2 [s1=0.2, s2=0.8]	unprofitable: cryptic	unprofitable: cryptic
profitable: cryptic	profitable: cryptic
s1>s2 [s1=0.8, s2=0.2]	unprofitable: conspicuous	unprofitable: conspicuous
profitable: cryptic	profitable: cryptic

The equilibrium morphological form exhibited by the vast majority of profitable and unprofitable prey at t=1000 under various combinations of parameters q1, q2, s1, s2, b and c. Exact parameter values given in square brackets. Other parameter values r=1, K=1000, m=0.001. These conclusions remained the same whether all prey start as form 1 (U1₀=500, U2₀=0, P1₀=500, P2₀=0) or all prey start as form 2 (U1₀=0, U2₀=500, P1₀=0, P2₀=500).