Developing new environment

[Karlq]

like tropical jungle or nortic iceberg.

and i want some more challenging wild animals like tiger or mammoth

I just wish for it. not a big deal

[Zirikana]

a fun idea, but read the stickies m8 You'll get a lot more out of these forums if you use the search function diligently.

[burgingham]

Not only has this been suggested many times before (even very recently), also most people have put alot more effort into their ideas. Come up with reasons why you want things implemented, then think about the implications and effects they will have on game mechanics and the general game enviroment.

Edit: Now that I see you only have been around like a day or so I would rather advice you to hold back on posting any ideas until you get a better grasp of the game itself and the direction it is supposed to go to. Play the game, read the forums, then start posting your ideas.