How do you beat level 18 and 19 on spore origins on the iPod tuch?

sorry dude. but i haven't done it on the iphone/iPod touch BUT! i know the tactic. get the red cycloptic ones to ram into you and get out of the way so they ram into the big ones. TIP: make the big ones follow you over the holes that have the creatures in it that attack you. it REALLY helps. when you're big enough eat the brown-ish cycloptic creatures.