Ostriches live in hot environments, and they are normally exposed to the sun for long periods. Mammals

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Ostriches live in hot environments, and they are normally exposed to the sun for long periods. Mammals in similar environments have special mechanisms for reducing the temperature of their brain relative to their body temperature. Fuller et al. (2003) tested whether ostriches could do the same. The mean body and brain temperature of six ostriches was recorded at typical hot conditions. The results, in degrees Celsius, are as follows:

Ostrich 11 22 33 44 55 66 Body temperature 38.5138.51 38.4538.45 38.2738.27 38.5238.52 38.6238.62 38.1838.18

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a. Test for a mean difference in temperature between body and brain for these ostriches.

b. Compare the results to the prediction made from mammals in similar environments.

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The Analysis Of Biological Data

ISBN: 9781319226237

3rd Edition

Authors: Michael C. Whitlock, Dolph Schluter

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