Diglett evolves into Dugtrio at level 26, and instantly learns the move Sand Tomb
at level 26
Diglett evolves at level 26.
Yamna does not evolve in FireRed.
Lickitung does not evolve in FireRed.
Dragonair will evolve at level 55.
Electabuzz is not able to evolve in FireRed.
Rhydon is not able to evolve in FireRed.
pidgeotto will evolve at level 36
Rattata will evolve at level 20.
Ghastly will evolve at level 20.
At level 33.
Level 24.