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Citations
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Bell, F. R. (1972). Sleep in the larger domesticated animals. Proc R Soc Med, 65(2), 176–177.
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Giles, N., & Tupper, J. (2006). Equine interspecies aggression (Vol. 159).
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Piccione, G., Caola, G., & Refinetti, R. (2005). Temporal relationships of 21 physiological variables in horse and sheep. Comp Biochem Physiol A Mol Integr Physiol, 142(4), 389–396.
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