it evolve at level 40
On level 28!!!!
You have to trade it
Level 23.
Level 55.
level 16
Level 40.
It will evolve if you use a water stone on it.
It does not evolve at a certain level. It evolves when you use a Fire Stone on it.
Paras should evolve in Parasect at level 24.
Only when you use a fire stone on growlithe it will evolve.
You have to trade it to another player for it to evolve.