Tag Info

Hot answers tagged


Yes, according to calculations presented here and here the conclusion is that: The O2 diffusion coefficient in saturated air (15% oxygen) is 5,700 to 10,800 times greater than in water (60°C and 20°C respectively). And here is a paper using this difference to investigate the transfer of O2 through the tracheal system of a click beetle.


I'd say that unihemispheric sleep and adaptations like it really are sleep - the brain activity on one side of the brain gives a characteristic sleep pattern. It certainly must satisfy the needs of an aquatic mammal like a dolphin or a whale since they have to be partially conscious to breathe by surfacing regularly. It does seem to affect the brain ...


I suppose that it depends on how sleep is defined. If we define it a a mechanism by which the brain repairs itself in an altered state, then, yes they do indeed sleep. Just not with all of their brain at once.

Only top voted, non community-wiki answers of a minimum length are eligible