Matching based on biological categories in Orangutans (Pongo abelii) and a Gorilla (Gorilla gorilla gorilla)
Following a series of experiments in which six orangutans and one gorilla discriminated photographs of different animal species in a two-choice touch screen procedure, Vonk & MacDonald (2002) and Vonk & MacDonald (2004) concluded that orangutans, but not the gorilla, seemed to learn intermed...
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| Format: | Article |
| Language: | English |
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PeerJ Inc.
2013-09-01
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| Series: | PeerJ |
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| Online Access: | https://peerj.com/articles/158.pdf |