Assertion: north american water snake | /r/HasProperty | nerodia ssp
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Source sentences:
text: North American water snakes (Nerodia ssp.), cottonmouths, copperheads (Agkistrodon contortrix) and especially the South American anacondas (Eunectes murinus and E. notaeus) are known to eat stillborn young or those otherwise unable to survive soon after birth.