Assertion: spiny dogfish's spine | /r/MadeOf | venom
Facets:
value: in certain species
type: OTHER
Source sentences:
text: The spines in this species contain venom that can cause a very painful wound.
text: Spiny dogfishes feature two spines, one in front of each fin, that contain venom in certain species.
text: The spines in this species contain venom that can cause a very painful wound.