Assertion: cuttlefish's buoyancy | /r/HasProperty | internal
Facets:
Source sentences:
text: To do so, these cuttlefish alter their internal buoyancy through the use of something called a cuttlebone, which isn't a bone but a porous internal shell.
text: To do so, these cuttlefish alter their internal buoyancy through the use of something called a cuttlebone, which isn't a bone but a porous internal shell.