Tool use by a red howler monkey (Alouatta seniculus) towards a two-toed sloth (Choloepus didactylus)

  title={Tool use by a red howler monkey (Alouatta seniculus) towards a two-toed sloth (Choloepus didactylus)},
  author={C. Richard-Hansen and Natalia Bello and J. Christophe Vi{\'e}},
Among New World monkeys, spontaneous tool use and object manipulation are commonly descirbed inCebus species only. We report here an occurrence of tool manipulation by a wild male red howler monkey (Alouatta seniculus), observed using a stick to softly but repeatedly hit a two toed sloth (Choloepus didactylus) resting in the same tree. The ecological context of this unusual behavior for this quiet species generally showing very little manipulative propensity is discussed. 

Interactions of Howler Monkeys with Other Vertebrates: A Review

An extensive search of the available data on interspecific howler encounters, including individual communications from field primatologists, is completed in order to gain insight into how howlers share their habitat and interact with other species, the pressure that predators and potential competitors may exert on them, and the potential benefits and costs that howlers may represent for other species.

Animal tool use: current definitions and an updated comprehensive catalog

An updated, comprehensive catalog of documented animal tool use is presented that indicates whether the behaviours observed included any 'true' tool use, whether the observations were limited to captive animals, whether tool manufacture has been observed, and whether the observed tool use was limited to only one individual and, thus, 'anecdotal' (i.e., N = 1).

Current Perspectives on the Biological Study of Play: Signs of Progress

A brief synopsis of current play research covering issues of adaptive function, phylogeny, causal mechanisms, and development is presented to selectively highlight contemporary areas of research in which the underlying processes and consequences of play should not be ignored.

As “Adnotationes” do Jesuíta Johann Breuer sobre a história natural da missão de Ibiapaba, Ceará (1789)

Born on 15 June 1718 in Cologne, Germany, Johann Breuer entered the Society of Jesus in 1713, being sent in 1741 as a missionary to Northeastern Brazil. Up to the year 1745 he accompanied Faher

A Tool for Every Job: Assessing the Need for a Universal Definition of Tool Use

It is demonstrated that many behaviors recently described as tool use do not meet criteria for prevalent definitions, while other neglected behaviors may constitute a form of tool use.



Tool use in Cebus.

  • E. Visalberghi
  • Biology, Psychology
    Folia primatologica; international journal of primatology
  • 1990
Early anecdotal information and systematic studies of tool use in capuchin monkeys (Cebus spp.) are summarized, indicating that capuchins never develop an understanding of the requirements of the tool tasks presented.

Exploration and play in howler monkeys (Alouatta palliata)

There was a clear trend for animals to spend less time in nonsocial exploration with increasing age, and for the frequency of social play to follow an inverted “U” pattern, peaking in the early juvenile stage at 15–30 min per day.

Use of a club by a wild white‐faced capuchin (Cebus capucinus) to attack a venomous snake (Bothrops asper)

  • S. Boinski
  • Biology
    American journal of primatology
  • 1988
In Parque Nacional Manuel Antonio, Costa Rica, an adult male Cebus capucinus was observed repeatedly hitting a venomous snake (Bothropsasper) with a branch. Initially a large dead branch overhanging

Diet of the red howler monkey (Alouatta seniculus) in French Guiana

We report the feeding behavior and food preferences of a troop of red howler monkeys (Alouatta seniculus) over two annual cycles in primary tropical rain forest in French Guiana. The monkeys used 195

Les mammifères frugivores arboricoles nocturnes d'une forêt guyanaise : inter-relations plantes-animaux

The relationships between a community of nine nocturnal frugivorous mammal species and the plants on which they feed were studied during 14 consecutive months in a secondary forest near Cayenne, French Guiana to identify the massive, irregular, and unpredictable fruiting cycles of these species.

Distribution of Two Sympatric Species of Sloths (Choloepus didactylus and Bradypus tridactylus) along the Sinnamary River, French Guiana 1

The distribution of captures was relatively continuous for both species along the rivers; variations most likely reflected biases due to capture methods.

Spontaneous tool use and sensorimotor intelligence in Cebus compared with other monkeys and apes

Spontaneous tool use and sensorimotor intelligence in Cebus were observed to determine whether tool use is discovered fortuitously and learned by trial-and-error or, rather, whether advanced sensorsimotor abilities are critical in its ontogeny and evolution.

A Preliminary Analysis of a Neotropical Mammal Fauna

The abundance and biomass of species of nonvolant mammals on Barro Colorado Island are estimated and compared with data from other areas. The edentates, particularly the sloths, are shown to be