Assertion: blue whale's skin | /r/HasProperty | mottled
Facets:
Source sentences:
text: Blue whales are light grey/blue to dark grey while at the surface, but seen underwater they are a luminous aqua blue, they can be distinguished from other large whales as they have mottled skin.
text: The skin is mottled and when seen underwater, but it appears a beautiful blue, and hence, its name.
text: The blue whale has mottled skin with pale gray blotches speckled over its body.