Assertion: spiny dogfish's spine | /r/HasProperty | venomous
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Source sentences:
text: Wielding two venomous spines and growing as long as 4 feet, Atlantic spiny dogfish can often be seen hunting prey in dog-like packs (hence the dog-like name).
text: The Spiny Dogfish is named for the two venomous spines at the base of their dorsal fins that provide protection against predators.
text: They have unusual physical characteristics like venomous spines, they hunt in packs, and they have the longest gestation period of any shark.