HG/SS: The Lati that comes with your game (Latias for HG; Latios for SS) canbe obtained after being found roaming Kanto. You must have talked to Steven after getting the national PokeDex and exiting the Pokemon Fan Club. The other Lati will be found in Pewter City after showing Steven the event-received Enigma Stone, which is revealed to be the Soul Dew item.
R/S/E: You'll need the eon ticket which i think you can get at the events in toy shops. Then take the ferry to southern island and eureaka, the opposite lati to your game will appear.
Latias and Latios are both from the eon species and they are both psychic/dragon types.
my opinion is latios because he is older than latias
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.
Latias and Latios
yes
No, Latias and Latios cannot have an egg together because they are both legendary Pokémon.
You can get Lugia in both games!! In HG you can get Kyogre, Latias. In SS you can get Groudon, Latios. You can get both Latios and Latias in both games if you have enigma stone, AR, or Gameshark!
You get latios when you save latias and then you get them both. Hope this helps Darkuslord
No.
if they want to yes
You can only capture one of them but of course you can have both by trading.
No, because Latios and Latias are brother and sister, so they can't mate. they could mate but the both have to be level 100 its a Pokemon named latius What?