Related Experiment Video
Updated: Feb 1, 2026
06:22
A Pilot Study on the Repetitive Transcranial Magnetic Stimulation of Aβ and Tau Levels in Rhesus Monkey Cerebrospinal Fluid
Published on: September 3, 2021
4.1K
Chest-rubbing in captive woolly monkeys (Lagothrix lagotricha)
Brent C White1, Stephanie E Dew1, James R Prather2
1Psychobiology Program, Centre College, 600 West Walnut St., 40422, Kentucky, Danville, USA.
Primates; Journal of Primatology
|December 15, 2018
Summary
Chest-rubbing in woolly monkeys (Lagothrix lagotricha) is primarily performed by mature males. This behavior appears linked to reproduction and spacing, with females increasing rubbing when the dominant male died.
Area of Science:
- Primate Ethology
- Animal Behavior
- Sociobiology
Background:
- Chest-rubbing is a poorly understood behavior in woolly monkeys (Lagothrix lagotricha).
- Potential functions include territorial marking, social spacing, reproductive signaling, environmental identification, self-anointing, or displacement activity.
Purpose of the Study:
- To investigate the correlates and potential functions of chest-rubbing in captive woolly monkeys.
- To determine if chest-rubbing serves roles in territoriality, spacing, reproduction, or other behavioral contexts.
Main Methods:
- Observational study of a captive group of woolly monkeys (Lagothrix lagotricha).
- Data collection focused on the occurrence of chest-rubbing in relation to social and environmental factors.
Main Results:
- Chest-rubbing was exclusively observed in sexually mature individuals, predominantly males.
- Female chest-rubbing increased significantly following the death of the adult male.
- Male chest-rubbing frequency correlated with mating periods and the presence of human observers.
Conclusions:
- Chest-rubbing in woolly monkeys likely serves a reproductive function for both sexes.
- Evidence supports chest-rubbing as a spacing mechanism among individuals or groups.
- The behavior may also be influenced by social dynamics and external stimuli.
Related Concept Videos
01:24Flail Chest-I
717
Overview of Flail Chest
Flail chest is a severe and potentially life-threatening condition characterized by the fracture of three or more adjacent ribs in multiple places. It is most commonly caused by direct impacts and trauma, such as motor vehicle accidents or injuries from a steering wheel impact. It can also occur due to falls in elderly individuals with osteoporosis, or assaults involving sharp objects.
Pathophysiology
The pathophysiology of flail chest is complex, involving fractures of...
Flail chest is a severe and potentially life-threatening condition characterized by the fracture of three or more adjacent ribs in multiple places. It is most commonly caused by direct impacts and trauma, such as motor vehicle accidents or injuries from a steering wheel impact. It can also occur due to falls in elderly individuals with osteoporosis, or assaults involving sharp objects.
Pathophysiology
The pathophysiology of flail chest is complex, involving fractures of...
717
01:26Flail Chest-II
617
Managing flail chest, a condition characterized by a segment of the chest wall moving independently from the rest of the thoracic cage, requires a comprehensive approach. It includes a thorough assessment of the patient's condition, a diagnostic evaluation to determine the extent of the injury, and the implementation of appropriate medical interventions tailored to the individual's needs.
Assessment:
1. Clinical Evaluation:
History:
Assessment:
1. Clinical Evaluation:
History:
617
01:24Chest Physiotherapy
1.8K
Chest Physiotherapy (CPT) is a therapeutic technique used in respiratory care to improve ventilation, clear bronchial secretions, and enhance the efficiency of respiratory muscles. This therapy includes three primary procedures: postural drainage, percussion, and vibration. It can be performed on spontaneously breathing patients and those who are intubated and mechanically ventilated.
Purpose
CPT is primarily used for patients with excessive bronchial secretions who have difficulty clearing...
Purpose
CPT is primarily used for patients with excessive bronchial secretions who have difficulty clearing...
1.8K
03:34Uncertainty in Measurement: Significant Figures
81.7K
All the digits in a measurement, including the uncertain last digit, are called significant figures or significant digits. Note that zero may be a measured value; for example, if a scale that shows weight to the nearest pound reads “140,” then the 1 (hundreds), 4 (tens), and 0 (ones) are all significant (measured) values.
81.7K
01:05Breathing
64.5K
The process of breathing, inhaling and exhaling, involves the coordinated movement of the chest wall, the lungs, and the muscles that move them. Two muscle groups with important roles in breathing are the diaphragm, located directly below the lungs, and the intercostal muscles, which lie between the ribs. When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity and creating more room for the lungs to expand. When the intercostal muscles contract, the ribs...
64.5K
01:24Data Reporting and Recording
5.4K
Reporting and recording are crucial in data documentation. The timely, thorough, and accurate documentation of facts is essential when recording patient data. Failure to record findings during an assessment or interpretation of a problem will result in loss of information and make the patient document unreliable. The reader is left with general impressions if the information is not specific. A recording is documenting data of the individual's health information in a traceable, secure, and...
5.4K