Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Mean (±s.e.) number of red crumbs attacked in trial 8−number of red crumbs attacked in trial 7 in experiment 1 (n=9 for each group). (b) Mean (±s.e.) number of green crumbs attacked before a red in trial 7−number of green crumbs attacked before a red in trial 8 in experiment 1 (n=9 for each group).
