Well it depends what part are you in the game but you unlock the marine resort dungeon and you will be able to evolve at the luminous springs. (Note:you have to have beaten the game and did the manaphy misson.)
No one every Pokemon will be beating by another eventually.
Squirtles can be found at Lake Afar.
Answer:Yes, PMD2 is more commonly known as Pokemon Mystery Dungeon: Explorers of Time/Darkness.
Yes, you have to beat darkrai and that beats the game. Darkrai is in Dark Crater.
wonder mail look at http://serebii.net/dungeon2/event.shtml
http://www.serebii.net/dungeon2/naturetest.shtml
yes all Pokemon evolve in Pokemon mystery dungeon blue rescue team after you beat Rayquaza and legendary Pokemon don't evolve.
I think so somehow you can.
After you evolve in Pokemon Mystery Dungeon, you should train to level 100 then kick other pokemon's ASSES
With a code. you can find it at http://serebii.net/dungeon2/event.shtml
yes go to http://www.upokecenter.com/games/dungeon2/guides/wondermail.php but it Pokemon mystery dungeon explores of darkness from jonny Jones
Well what i thought was, you have to talk to man first then go to amp plains with the mystery part and zapdos should be on the 7th floor. (i read that on the internet)