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.
Percentage of trial spent feeding (A) or begging (B) and distance from food at the time of 'capture' (see Methods for details of distance coding). Data from helpers and bystanders only. Note this figure depicts the untransformed response variable. The lower and upper hinges correspond to the first and third quartiles (the 25th and 75th percentiles). The lower and upper whiskers extend from the hinge to no further than 1.5 times the interquartile range.
