General cognitive abilities in orangutans (Pongo abelii and Pongo pygmaeus)
نویسندگان
چکیده
منابع مشابه
Meat-eating by adult female Sumatran orangutans (Pongo pygmaeus abelii).
Information about meat-eating behavior by wild orangutans (Pongo pygmaeus) is scant. The first article about such a case dates from 1981. Since 1989, seven incidents of adult female Sumatran orangutans eating slow lorises (Nycticebus coucang) have been witnessed. Three females from two study sites were involved. In three cases the females were seen catching the prey. There are too few cases to ...
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Four orangutans (1 juvenile, 2 subadults, and 1 adult) and ten 6-8-year-old children were tested in 4 liquid conservation tasks of increasing levels of difficulty. Task difficulty depended on the type of transformation (continuous vs. discontinuous quantities) and the relative contrast between the shapes of the containers. Results indicate that orangutans did not display conservation in the str...
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ژورنال
عنوان ژورنال: Intelligence
سال: 2019
ISSN: 0160-2896
DOI: 10.1016/j.intell.2018.10.008