Assertion: shark's adaptation | /r/CapableOf | protect the shark
Facets:
value: from surviving in freshwater
type: TRANSITIVE-OBJECT
value: from ultraviolet radiation
type: TRANSITIVE-OBJECT
Source sentences:
text: Other theories are that the marks help camouflage the shark, help sharks recognize each other or, perhaps most interesting, are used as an adaptation to protect the shark from ultraviolet radiation.
text: This adaptation prevents most sharks from surviving in freshwater, and they are therefore confined to marine environments.