shoupart
Contributor
I am always amazed at how fluidly sea lions can move through the water. I've been wondering for a while now how they control their buoyancy while swimming. Do they adjust buoyancy or have a need to do that?
I would guess that when they dive, they just expel as much as possible from their lungs to become negatively buoyany, and then just swim their way through the water column and use that to maintain whatever depth they need.
I wonder how buoyant their body fat is, too, and if they have to make an effort to swim downward against it floating.
Can anybody explain the mechanics behind their movements?
I would guess that when they dive, they just expel as much as possible from their lungs to become negatively buoyany, and then just swim their way through the water column and use that to maintain whatever depth they need.
I wonder how buoyant their body fat is, too, and if they have to make an effort to swim downward against it floating.
Can anybody explain the mechanics behind their movements?
