Brain-processing limitations and selective pressures for sleep, fish schooling and avian flocking

Article Abstract:

The need for sleep in animals is discussed by evolutionary biologist J. Lee Kavanau. Some fish and birds do not need to sleep for weeks, or at all, because their vision is so poor. The main need for sleep comes from the acquisition, organization, and storage of visual imputs.

California, Column, Visual perception, Sleep, University of California (Los Angeles)

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Daytime naps in night-migrating birds: behavioural adaptation to seasonal sleep deprivation in the Swainson's thrush, Catharus ustulatus

Article Abstract:

Seasonal and nocturnal migrations cause sleep deprivation in diurnal Swainson's thrush, Catharus ustulatus. Thrushes compensate for the sleep loss by taking daytime naps.

Analysis, Thrushes, Sleep deprivation, Migratory birds, Naps (Sleep)

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Survival skills required for predator evasion by fish larvae and their relation to laboratory measures of performance

Article Abstract:

Predator evasion skills of fish larvae are examined in a laboratory setting with predation trials.

Fishes, Fish larvae, Escape behavior, Escape behaviour

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