HIGHLIGHTS
- who: Sadaf from the University of Hamburg, Martin-Luther-King Platz, Hamburg, Germany have published the Article: Cognitive Understanding of Object Permanence in Mandrills ( Mandrillus sphinx , L.), in the Journal: (JOURNAL)
- what: The results of this study show that the mandrills are able to solve visible displacement tests of different complexity, but were unable to solve the invisible displacement tests.
- how: The experiments were conducted on one side of the outdoor-enclosure that was not accessible for visitors. For statistical analyses the authors used the G-test to test for homogeneity.
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