No.
Yanma and most other Pokemon have new evolutions that only exist in the 4th generation Pokemon games diamond, pearl, platinum this means none of these evolutions exist in the previous generations like leafgreen.
Aside from legendary Pokemon and starters from past generations, Murkrow and its evolutions, misdreavus and its evolutions, trapinch and its evolutions, clamperl and its evolutions, Glameow and its evolutions, and stunky and its evolutions cannot be found in the wild in Pokemon Platinum.
No, unfortunatly. It would be a good thing if you could, but a Pokemon just can't learn a move from a Previous generation.
As Totodile is a Generation 3 starter Pokemon, it cannot be obtained directly in Pokemon Diamond. Instead, players have to transfer it via trades from previous generations of the Pokemon games.
Pokemon Tower Defense is 1st generation pokemon only, so no fourth generation or second generation evolutions (including Steelix). Therefore, Onix can't evolve.
No. Pokemon Black and White have new Pokemon that the past games' engines cannot recognize. Even if you battle with Pokemon from previous generations, they might be loaded with moves from the new generation.
The 1st Generation of the games introduced 151 Pokémon but some of them gained new evolutions (or pre-evos) in later games.
Happiny is a 4th generation Pokemon none of those Pokemon existed in previous generation games like leafgreen.
not realy, mabye if they are on level 100. i traded a level 100 mew on world trade center. but you can trade with friends.
Unfortunately Torkoal doesn't have any evolutions even in the later Pokemon games. But you can always hope that he will get one in the 5th generation.
As of yet (July 31, 2011) there has been no confirmation or announcement of Game Freak developing a sixth generation of Pokemon. However, because of the franchise's global success and popularity, another generation seems likely. If following the pattern of the previous two generations, (hypothetically) Generation VI should start sometime in late 2014 - 2015.
No Pokemon evolves into milktank. Milktank has no evolutions or pre-evolutions.