DescriptionLorenz and Tinbergen1.jpg English: Nikolaas Tinbergen (left), Konrad Lorenz (right) Date 1978 Source Max Planck Gesellschaft/Archiv First upload:...
This image is a derivative work of the following images: File:Lorenz_and_Tinbergen1.jpg licensed with Cc-by-sa-3.0-migrated, GFDL 2010-02-14T01:52:46Z...
