no such thing as a wild arcanine, so you will have to migate.
There is no Arcanine in Pokemon Platinum. You must find a Growlithe and evolve it with a fire stone. You can find Growlithe in Route 201 and 202 with Pokemon FireRed in your GBA slot.
In tall grass, on the water, by fishing, and in caves is where you can find Pokemon in Pokemon SoulSilver. Just about anywhere is where you can find Pokemon.
Arcanine is not a legendary Pokemon because legendary Pokemon can't be breeded and arcanine can.
You can get an Arcanine be evolving Growlithe with a Fire Stone. Or you can migrate from your Firered, if you have one.
You can evolve a growlithe with a fire stone, but you cannot catch growlithe in Soulsi;ver. It is a Heartgold exclusive, but you can try to get one over wi-fi.
you cant find celebi in soulsilver
you don't find arceus in soulsilver
Because Arcanine is a legendary Pokemon. Check Arcanine's pokedex entries.
Arcanine is the Pokemon which is known as the 059th in the PokeDex in Pokemon Platinum.
you have to catch a Pokemon with it
you find it