Mammals Sleeping

Sleep can follow a physiological or behavioral definition. The data were used for analyzing the relationship between constitutional and ecological factors and sleeping in mammals.

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Young whales and dolphins actually rest eat and sleep while their mother swims towing them along in her.

Mammals sleeping. When marine mammals sleep and swim at once they are in a state similar to napping. How marine mammals sleep to solve the problem of movement many species of aquatic mammals resort to the so called unihemispheric sleep. See below regarding the sleep of birds and of aquatic mammals and a compensatory increase following deprivation of the state this last known.

Two qualitatively different sleep variables dreaming and non dreaming were recorded. Constitutional variables such as life span body weight brain weight and gestation time were evaluated. In the physiological sense sleep is a state characterized by reversible unconsciousness special brainwave patterns sporadic eye movement loss of muscle tone possibly with some exceptions.

This data set includes data for 39 species of mammals distributed over 13 orders. Perhaps this long word means that while a part of a brain is sleeping the remaining hemisphere is responsible for remaining active and therefore alert.

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