KnowraViperidaeLinked fromLinked fromThe 9 pages that link to Viperidae, each with the reason it gives.All 9Narrower topic 2Compared with 7RattlesnakeNarrower topic: Rattlesnakes belong to this family through their placement among pit vipers.Pit viperNarrower topic: Crotalinae is one of the two principal subfamilies within Viperidae.