Results 141 to 150 of about 2,094 (177)

Morphology of the Interorbital Region of Saimiri sciureus

Folia Primatologica, 1983
The skull of the platyrrhine primate Saimiri sciureus is distinguished by a large interorbital fenestra. Juvenile skulls still show a bony interorbital septum with some small gaps. A morphogenetic study was undertaken to better understand the structures of the interorbital region, which represents a linkage between the base of the braincase and the ...
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The Thatcher illusion in squirrel monkeys (Saimiri sciureus)

Animal Cognition, 2012
Like humans, Old World monkeys are known to use configural face processing to distinguish among individuals. The ability to recognize an individual through the perception of subtle differences in the configuration of facial features plays an important role in social cognition.
Ryuzaburo, Nakata, Yoshihisa, Osada
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Play Vocalizations of Squirrel Monkeys (Saimiri sciureus)

Folia Primatologica, 1986
Vocalizations occurring during play bouts were studied in 2 pairs of young male squirrel monkeys. Two main call types, one having four variants, are described. Vocalization rate varied with the type of ongoing behavior and with play bout duration, an association considered to be indicative of motivation to play.
M, Biben, D, Symmes
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Renal Disease in Squirrel Monkeys (Saimiri sciureus)

Veterinary Pathology, 1981
Renal lithiasis, pyelonephritis, and glomerulonephritis were common in our colony of Brazilian phenotype squirrel monkeys (Saimiri sciureus), with glomerulonephritis being a major cause of mortality in adult animals. Squirrel monkey glomerulonephritis was divided into four major classifications, based on light and electron microscopy, similar to those ...
H F, Stills, B C, Bullock
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Perception of chasing in squirrel monkeys (Saimiri sciureus)

Animal Cognition, 2015
Understanding the intentions of others is crucial in developing positive social relationships. Comparative human and non-human animal studies have addressed the phylogenetic origin of this ability. However, few studies have explored the importance of motion information in distinguishing others' intentions and goals in non-human primates.
Takeshi, Atsumi, Yasuo, Nagasaka
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Ureteral Reflux in the Squirrel Monkey (Saimiri sciureus)

American Journal of Veterinary Research, 1971
SUMMARY Twenty urinary samples obtained from 4 female squirrel monkeys (Saimiri sciureus) were measured. The volume of individual urinary samples ranged between 3 and 7.9 ml. (mean 4.415 ml. ± 1.45). Cystograms were prepared in 6 female squirrel monkeys to study ureteral reflux. Bilateral ureteral reflux was observed in 4 of 6 monkeys.
D P, Sinha, T B, Clarkson
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Fertilization in vitro of Saimiri sciureus Follicular Oocytes

Journal of Medical Primatology, 1975
An in vitro fertilization system was developed for the squirrel monkey. Oocytes recovered from follicles of gonadotropin-treated females and cultured in vitro with spermatozoa resulted in fertilized ova capable of developing to the four-cell stage in culture.
T J, Kuehl, W R, Dukelow
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Mycobacterium kansasii infection in squirrel monkeys (Saimiri sciureus sciureus)

Journal of Medical Primatology, 1995
Abstract: This report documents asymptomatic infections of Mycobacterium kansasii in four of five tuberculin positive squirrel monkeys (Saimiri sciureus sciureus). The mycobacterial DNA amplified by polymerase chain reaction (PCR) from a bronchial lymph node had no affinity for the species specific probes of M. tuberculosis, M.
Brammer, DW, O'Rourke, CM, Health, LA, CE, Chrisp, GK, Peter, Hofing, GL   +5 more
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The contrast sensitivity of the squirrel monkey (Saimiri sciureus)

Vision Research, 1976
Abstract The contrast sensitivity of three squirrel monkeys and two human subjects was measured under similar conditions with a modified method of constant stimuli. Sensitivity was greatest for all subjects at 2–5c/deg and declined at higher and lower spatial frequencies.
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The Squirrel Monkey (Saimiri sciureus)

1983
The squirrel monkey (Saimiri sciureus) is widely distributed in Central and South America between the 17°S and 10°N latitudes. They are particularly prevalent on the Pacific side of Central America and throughout the Amazon basin. For as long as 400 years they have been captured and traded as pets for the homes of the aristocracy of Europe and America.
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