no seviper not evolve there was no previous evolution
Zangoose and Seviper have always been mortal enemies. The thing about both of them though is that neither of them evolve. Zangoose looks like he could evolve, but in reality he doesn't.
Seviper. Of course. Its poisin and it will smash zangoose at any time.
you don't find seviper in ruby, it is also zangoose's enemy.
seviper does not evolve
Zangoose does not evolve.
No only seviper
Seviper does not Evolve.
Seviper doesnt evolve
No, Seviper will probaly not evolve at any type of level. Seviper Defentilly doesn't evolve. Related to Seviper is Carnivine. It's the same, Carnivine doesn't evolve too!
Zangoose does not evolve
Sorry, but putting a Seviper first in your party cannot increase your chances of finding a Zangoose. Out of Ruby, Sapphire and Emerald, Zangoose is only catchable in Ruby, on Route 114. If you do not have Ruby, than in order to get Zangoose in Sapphire/Emerald, then you must trade it from another game.
Zangoose doesn't evolve. Hope I helped!:)