you can't catch dialgas anywere
You are able to obtain dialgas' picture after you encounter it
palkia
In the National Dex.
you cant
Dialga has no evolution stage.
Yes but only if you trade or have an AR.
You canot a dialga egg in pokemon black and white.
yes they are but Palki's skill is higher than dialgas
When you see Dialga. Look around (I think its south) You'll find it.
The duration of Her Best Move is 1.68 hours.
The best first move is 97.