Substrate optimization in nut cracking by capuchin monkeys (Cebus apella)

Article Abstract:

An experiment is conducted to examine the effect of substrate on the nut-cracking behavior of a group of semicaptive capuchin monkeys (Cebus apella). The results have shown that adult capuchins chose the hardest substrates, and that these substrates have supported efficient cracking.

Tool use in animals, Animal tool use

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Consistency of hand preference across low-level and high-level tasks in Capuchin monkeys (Cebus apella)

Article Abstract:

A study of eleven captive brown capuchin monkeys (Cebus apella) to understand the consistency of hand preference across various high-level and low-level task of varying complexity is discussed. The findings show that capuchins donEt demonstrate group-level hand preferences.

Usage, Physiological aspects, Hand

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Summation and quantity judgments of sequentially presented sets by Capuchin monkeys (Cebus apella)

Article Abstract:

Experiments were conducted to assess the quantity judgments of capuchins when responding to sets of food items, identical in food type but differing in number, at the time of response. Results showed response to quantitative differences between sets.

Food and nutrition, Animal feeding behaviour, Animal feeding behavior

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