File:Nikolaas Tinbergen 1978.jpg
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- File:Lorenz_and_Tinbergen2.jpg licensed with Cc-by-sa-3.0-migrated, GFDL
- 2008-09-03T16:27:15Z Raymond 2064x1410 (518367 Bytes) {{Information |Description=Nikolaas Tinbergen (right), Konrad Lorenz (left) |Source= Max Planck Gesellschaft/Archiv |Date=1978 |Author= Max Planck Gesellschaft |Permission= Max-Planck-Gesellschaft zur Förderung der Wissensch
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