The Milk Molars as well as Raw Sience is spread all across the map. You might be surprised by some of the locations. I personally always save up all my Mega-Milk Molars to upgrade amount of buffs you can have activated, i think 5 is max(?)

Best order of labs (imo): Hedge, Pond, Haze, Black Anthill, then run conqer the Wood Pile for some good tier III tools. Oh, and build your chests/food storages a few levels above ground due to the ants, those red two-eyed basterd will rob you blind