Smithsonian magazine's 22nd Annual Photo Contest | Made possible through the support of MPB.com

9th Annual Smithsonian Magazine Photo Contest Natural World
Silhouette of trees and a howling monkey in Costa Rica

Silhouette of trees and a howling monkey in Costa Rica

Photo Detail
Date Taken: 02.2010
Date Uploaded: 11.2011
Photo Location: Costa Rica
Copyright: © Caitlin Clark