Have Flygon at level 45 and use dragonbreath on latios, latios will surely get paralyzed, the second time u meet latios, get a weak Pokemon to damage him until his life bar is red after that, find latios again then keep using an ultra ball until u capture him.
note: save ur masterball don't waste it on latios
only latios and latias
You can find Latios on Pokemon Emerald, Ruby, and SoulSilver.
Latios can be traded to Colosseum from Ruby, or Emerald.
No, you can only get Latias in Sapphire and Emerald and Latios in Ruby and Emerald.
No legendary Pokemon even latios and latias can have eggs.
there is no way to capture latias and latios in Pokemon pearl except if you migrate them from other Generation 3.
The show airs after becoming a pokemon champion at the pokemon league after watching the show your mom asks what color of the pokemon did the TV mention you get the choice of either picking RED or BLUE picking RED will let you capture Latias and picking BLUE will let you capture Latios.
in the pokedex
It is possible, but you can't catch them both on 1 Pokemon game. If you have Pokemon Emerald, Ruby and or Sapphire. Then you can get them both. For example: Someone trade Latios and you have Latias, trade an another Pokemon for Latios and you have them both.
Latios is not catchable in Sapphire you must get one from Ruby or Emerald.
40 (:
Trade from Sapphire/Emerald.