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1940s - Scientists use rats to test for competition and dominance during the 1940s
1940s - Scientists use rats to test for competition and dominance during the 1940s
1940s - Scientists use rats to test for competition and dominance during the 1940s
1940s - Scientists use rats to test for competition and dominance during the 1940s
Monkey offering food to parrot
1920s - Activities on a rabbit farm in 1929.
1940s - Scientists use rats to test for competition and dominance during the 1940s

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4132981
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Stock-Video ID: 4132981

1940er Jahre - Wissenschaftler nutzen Ratten, um in den 1940er Jahren auf Wettbewerb und Dominanz zu testen

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  • 1:36

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