Cheek Pouches and Primate Evolution
نویسندگان
چکیده
منابع مشابه
Optical coherence tomography of malignancy in hamster cheek pouches.
Optical coherence tomography (OCT)/optical Doppler tomography (ODT) provides real-time in vivo high-resolution (10-microm) imaging of tissues and real-time spatially resolved blood flow in microvasculature. Hamster cheek pouches with induced dysplasia and malignancies were imaged with OCT/ODT to assess the potential for application to airway malignancy. In 22 Golden Syrian hamsters, 0.5% 9,10-d...
متن کاملThe pharyngeal pouches and clefts: Development, evolution, structure and derivatives.
The pharyngeal arches form the face and neck of the developing embryo. The pharyngeal tissue is divided into distinct arches by the formation of clefts and pouches in between the arches. These clefts and pouches form at the juxtaposition between the ectoderm and endoderm and develop into a variety of essential structures, such as the ear drum, and glands such as the thymus and parathyroids. How...
متن کاملKinematic analysis of an appetitive food-handling behavior: the functional morphology of Syrian hamster cheek pouches.
Prodigious food hoarding in Syrian hamsters Mesocricetus auratus Waterhouse is strongly linked to appetite and is made possible by large internal cheek pouches. We provide a functional analysis of the cheek pouch and its associated retractor muscle. Frame-by-frame analysis of videotaped pouch-filling behavior revealed multiple jaw cycles for each food item pouched and the use of more jaw cycles...
متن کاملPrimate Evolution
The Primates are the order of mammals that includes ourselves along with other well known creatures such as chimpanzees, baboons and lemurs. The non-human members of the orders show many similarities to us in areas of social behaviour, language, tool-use and anatomy; and study of these animals gives us important insights into the origins of these features in ourselves. This lecture will briefly...
متن کاملCheek pouch use, predation risk, and feeding competition in blue monkeys (Cercopithecus mitis stuhlmanni).
The adaptive function of cheek pouches in the primate subfamily Cercopithecinae remains unresolved. By analyzing the circumstances of cheek pouch use, we tested two hypotheses for the evolution of cercopithecine cheek pouches proposed in earlier studies: (1) cheek pouches reduce vulnerability to predation, and (2) cheek pouches increase feeding efficiency by reducing competition. We studied two...
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ژورنال
عنوان ژورنال: Primate Research
سال: 1993
ISSN: 1880-2117,0912-4047
DOI: 10.2354/psj.9.3_235