All Outputs (2)

Energetic constraints, not predation, influence the evolution of sleep patterning in mammals (2008)
Journal Article
Capellini, I., Nunn, C. L., McNamara, P., Preston, B. T., & Barton, R. A. (2008). Energetic constraints, not predation, influence the evolution of sleep patterning in mammals. Functional ecology, 22(5), 847-853. https://doi.org/10.1111/j.1365-2435.2008.01449.x

1 Mammalian sleep is composed of two distinct states – rapid-eye-movement (REM) and non-REM (NREM) sleep – that alternate in cycles over a sleep bout. The duration of these cycles varies extensively across mammalian species. Because the end of a slee... Read More about Energetic constraints, not predation, influence the evolution of sleep patterning in mammals.

Phylogenetic analysis of the ecology and evolution of mammalian sleep (2008)
Journal Article
Capellini, I., Barton, R. A., McNamara, P., Preston, B. T., & Nunn, C. L. (2008). Phylogenetic analysis of the ecology and evolution of mammalian sleep. Evolution, 62(7), 1764-1775. https://doi.org/10.1111/j.1558-5646.2008.00392.x

The amount of time asleep varies greatly in mammals, from 3 h in the donkey to 20 h in the armadillo. Previous comparative studies have suggested several functional explanations for interspecific variation in both the total time spent asleep and in r... Read More about Phylogenetic analysis of the ecology and evolution of mammalian sleep.