The publisher apologizes for the following errors, which were introduced during the production process.
Supplementary figure titles and legends, as well as movie titles and legends, do not appear in the PDF version of the article, but do appear in the online version. Please view the figure and movie legends below.
Task-1, an Unsealed PET Bottle Containing c.a. 50 ml Sweet Milk.
Task-2, a Wire Mesh Box Containing an Orange.
Manipulated versions of task 1. Task-1a, an unsealed PET bottle without cap-seal (A). Task-1b, an unsealed PET bottle with a smaller cap-seal (B). Task-1d, a PET bottle with immovable cap and cap-seal (C). Task 1-d, a PET bottle with non-functional cap and cap-seal (D).
Task-3, a polycarbonate water bottle containing c.a. 50 ml sweet milk.
This Footage Illustrates an Adult Male Bonnet Macaque (AM1, Temple Group) Solving Task-1. The macaque grasps cap with mouth and opens bottle by rotating it with both the hands.
This Footage Illustrates an Adult Male Bonnet Macaque (AM2, Temple Group) Solving Task-1. The macaque punctures bottle-body, spills the liquid by rolling bottle with both the hands and licks the spill.
This Footage Illustrates an Adult Female Bonnet Macaque (AF2, Temple Group) Solving Task-1. The macaque punctures bottle-base and drinks the liquid by sucking it through the puncture.
This Footage Illustrates an Adult Female Bonnet Macaque (AF4, Temple Group) Solving Task-1. The macaque first attempts to open cap by rotating it with the left hand, failing to do so, it tears off bottle cap-seal with mouth, grasps bottle with both the legs and the right hand and opens cap by rotating it with the left hand.
Citation: The PLOS ONE Staff (2014) Correction: Flexibility in Food Extraction Techniques in Urban Free-Ranging Bonnet Macaques, Macaca radiata. PLoS ONE 9(3): e91480. https://doi.org/10.1371/journal.pone.0091480
Published: March 12, 2014
Copyright: © 2014 The PLOS ONE Staff. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.