Larvesta evolves before Zweilous. Larvesta evolves at level 59, while Zweilous evolves at level 64 (the latest of any Pokemon that evolves by level).
It depends on which Pokemon it is. If you have a Mudkip, it evolves into Marshtomp at level 16. Marshtomp evolves into Swampert at level 36. If you have a Beldum, it evolves into Metang at level 20. Metang evolves into Metagross at level 45. Hope I helped.:)
It evolves at level 33.
i think the Pokemon that evolves into gyarados is magikarp. it evolves at level 20
It evolves at level 26 into Floatzel.
Quilava evolves at level 36
Spearow evolves at level 20.
Vullaby evolves at level 54. It is one of the highest evolving Pokemon in the game. Vullaby will evolve into a Mandibuzz, a defensive Pokemon. You cannot catch a Mandibuzz anywhere.It is level and it evolves at level 54.
Krokorok evolves into Krookodile at level 40. Frillish evolves into Jellicent at level 40. Ferroseed evolves into Ferrothorn at level 40. Those are the only pokemon in Unova that evolve at level 40.
Dratini evolves at level 30 into Dragonair in Pokemon FireRed. It then evolves into Dragonite at level 55.
Zweilous evolves into a Hydreigon at level 64 therefore making it the highest level a Pokemon needs to evolve.
In Pokemon Diamond and Pearl, Baltoy evolves into Claydol at Level 36.