They are:
Raikou (Thunder Pokemon)
Entei (Fire Pokemon)
and Suicune (Water).
They can be found underground in burned tower in Ecruteak.
They will scatter and you will have to look around Grassy areas.
after they have scatterd you will be able to find them:
Raikou: ???*
Entai: in the grassy fields south from the 6 city (including the towns without gyms)
Suicune: is in the grassy fields west from the 9 city (including the towns without gyms)
*i have not yet figured out where raikou is but i will return with the answer soon.
Remember this only apply for the first time you meet the legendary dogs after that they change position each time you engage battle (doesn't matter if it is a trainer or a Pokemon you meet)
its totaly random
No. They were made after Pokemon Yellow.
it is one of the legendary Pokemon on Pokemon silver or gold it is required to catch the legendary dog Pokemon i think suicune entei and raikou are their names hope that helps some
Trade them from HeartGold and SoulSilver.
yes you can also catch them in soul silver.
suicune is top legendary dog just play Pokemon crystal and you'll see.
EnteiSuicuneRaikou
If by enti you mean Entei the legendary dog then yes, all three dogs are there.
There is actually nothing you do with Entei, Raikou, and Suicune (Being a legendary dog-catcher myself,). Just the pleasure (Not really) of having the three.
Suicune (Water) Entei (Fire) Raikou (Lightning) Some people say they are the Legendary Cats, and that there was a translation error.
entai- legendary dog Pokemon
lillipup
its suicune, the water type dog