Fur seals
Description
Aquatic mammals, birds and possibly some reptiles have the ability to sleep with one half of their brain active with the other half asleep. In terrestrial mammals both sides of the brain sleep at the same. Fur Seals, however, have developed both forms of sleeping, one for the water and one for land.
Runtime
1 min
Series
Subjects
Genre
Date of Publication
2011
Database
Alexander Street
Direct Link
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