Table 1: Summary of results.

From: On The Evolutionary Origin of Symbolic Communication

Comm. typeNumber of runsMax. isl. repro. rate (per era)Number of eras
Symbolic923890.111044.48P < 0.000011234.00173.91P = 0.12215
Indexical9020030.891510.12P < 0.000011373.19296.99P = 0.09423
  1. Runs are divided into three types based on the highest level of communication that emerged (“none” in the case of one run where communication never emerged and 10 additional runs with ωin = 0 for all t). The average (μ), standard deviation (σ), and two-tailed Wilcoxon rank-sum test P values are shown.