First catch a Doduo which can be found in the safari zone then train it to level 33.
You can but you can't
Dodrio is #85 in the national pokedex, and it is a Normal-Flying type Pokemon.
It's in the Safari Zone.
Evolve it from Doduo or trade for it.
You can catch a shuckle, wooper, heracross, phampy, and I think swirlfish or whatever that spike puff fish is named. Regular dodrio, pikachu, natu, xatu, magicarp not that it matters, goldeen, etc.
Recruit a Doduo or Dodrio and then beat the main storyline so that you can change leaders and members of your team.
In Pokémon FireRed, you can find Dodrio by evolving a Doduo, which you can catch in the Safari Zone. Once you have a Doduo, level it up to level 31, and it will evolve into Dodrio. Alternatively, you can trade for Dodrio with another player or find it in the wild in certain locations in Pokémon Emerald or LeafGreen, but it's not directly available in FireRed.
it evolves at level 31 into dodrio :)
Yes, it evolves in Dodrio starting at Lv31.
Oddish, gloom, Pikachu, psyduck, dodrio, giraffig.
You evolve it from Doduo which can be found in a Swarm in Route 201
Doduo evolves into Dodrio, starting at level 31.