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Circulation of the Giraffe

The long neck of the giraffe presents a unique problem in the regulation of the systemic arterial blood pressure and in the maintenance of the cerebral circulation. In 1954, Goetz and Budtz-Olsen succeeded in measuring the arterial blood pressure in a standing, unanesthetized giraffe. In this animal, approximately 13 feet tall, the carotid artery mean pressure was found to be 200 mm. Hg at the base of the brain. The present study was undertaken 2 years later as a sequel

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Giraffe Intergradation in Kenya

Since data concerning the distribution of the species and races of giraffe are scarce, the following observation, which concerns apparent hybrids between the reticulated giraffe (Giraffa camelopardalis reticulata) and the Masai giraffe (G. capensis tippelskirchi), a race of the southern species, seems noteworthy. The reticulated giraffe inhibits such low-level deserts in Kenya as lie north of the Tana River and east of Lake Rudolph, and also adjacent parts of southern Abyssinia; while the Masai giraffe occurs in deserts, bush country

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