Navigation Links
Road-crossing in chimpanzees: A risky business

In a finding that broadens our understanding of primate cooperation, researchers have found that chimpanzees evaluate risk when crossing roads and draw on an evolutionarily old principle--shared with at least some other primates--of protective "socio-spatial" organization that produces flexible, adaptive, and cooperative responses by a group of individuals facing risk. The research is reported by Kimberley Hockings and James Anderson of the University of Stirling and Tetsuro Matsuzawa at the University of Tokyo and appears in the September 5th issue of Current Biology, published by Cell Press.

Prior research has shown that adult male monkeys reduce the risks of predatory attacks through adaptive spatial patterning, moving toward the front of the group when traveling toward potentially unsafe areas, such as waterholes, and bringing up the rear when retreating, but comparable data on great-ape progression orders have been lacking. Crossing of man-made roads, sometimes necessitated by intersection with longstanding chimpanzee travel routes, presents a new situation that calls for flexibility of responses by chimpanzees to variations in perceived risk. Understanding how chimpanzees cross roads as a group would help shape our hypotheses about the emergence of hominoid social organization.

Progression order--the order in which individuals travel within a group--was studied in the small community of chimpanzees (Pan troglodytes verus) at Bossou, Guinea, West Africa as they crossed two roads, one large and busy with traffic, the other smaller and frequented mostly by pedestrians. Adult males, less fearful and more physically imposing than other group members, were found to take up forward and rearward positions, with adult females and young occupying the more protected middle positions. The positioning of dominant and bolder individuals, in particular the alpha male, was found to change depending on both the degree of risk and number of adult males presen t, suggesting that dominant individuals act cooperatively, and with a high level of flexibility, to maximize group protection.
'"/>

Source:Cell Press


Related biology news :

1. Any exposure to tobacco smoke during pregnancy is risky
2. New study finds similarities between monkey business and human business

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/15/2018)... MELBOURNE, Fla. (PRWEB) , ... August 15, 2018 , ... ... will be the NEW FX 635 Laser’s unveiling. Doctors from around the U.S. ... With the NEW FX 635, Erchonia Corporation completed another successful clinical trial ...
(Date:8/14/2018)... ... August 14, 2018 , ... ... for the global scientific community, announced today the establishment of a new Scientific ... is to foster and support scientific collaborations with ActiGraph’s academic and pharmaceutical industry ...
(Date:8/9/2018)... ... August 09, 2018 , ... CRB is proud to ... has won Engineering News-Record (ENR) Texas & Louisiana’s 2018 Best Projects in the ... competition. The judges selected 42 projects across 18 categories as the region’s best. ...
Breaking Biology News(10 mins):
(Date:8/1/2018)... ... August 01, 2018 , ... ... results on the significant impact of a proprietary biofield energy treated supplement ... preclinical research assessed biomarkers for systemic and organ-specific inflammation, as well as, ...
(Date:7/31/2018)... ... 31, 2018 , ... Mahoney Environmental , a leading ... new website. The new website has been designed with improved functionality and navigation, ... Innovative to build a website created for the customer. The newly redesigned site ...
(Date:7/25/2018)... ... July 25, 2018 , ... Eileen ... impact of a biofield energy treated nutraceutical to improve skin health parameters including ... for skin health and reported the following results:,     More ...
(Date:7/25/2018)... Fla. (PRWEB) , ... July 25, 2018 , ... ... Podiatric Medicine (NYCPM) & Foot Center of New York’s (FCNY) acquisition of several ... provides unrivaled excellence in podiatric medical education and clinical experience. Their students ...
Breaking Biology Technology: