Assertion: sea otter | /r/CapableOf | rest at the surface
Facets:
Source sentences:
text: That's why, while resting at the surface, a sea otter will hold its front paws above the water surface and fold its hind feet up onto to its body to help conserve heat.
text: Since they must sleep at the surface, they often wrap themselves in giant kelp to keep from floating away.
text: While resting at the surface, a sea otter will often times hold its forepaws above the water surface and fold its hind feet up onto to its torso to help conserve heat.