This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
panama canal panamacanal seth meek sethmeek samuel hildebrand samuelhildebrand fish zoology expedition zoologyexpedition central america centralamerica panama canal construction Street with palm trees and hospital and houses with screens to protect against mosquitoes carrying malaria. . Name of Expedition Panama Canal Zone Participants