The King Cobra is my favorite snake. The king cobra is the largest venomous snake in the world! In the TopTen it is probably in fifth place. Their venom is so potent it can kill an elephant in a single bit. And if a human gets bit by a king cobra they will die in about 30 minutes ! The thing I think makes the cobra look interesting is its hood. The hood fans out when it is warning others off or when it feels threatened.