deep sea mountain ranges and mineral jets
this could turn into a neat game play idea -- digger mermaids?!
I listened to another cool ted talk about permaculture where a farmer moved his herd of cattle into a fresh paddock. The cows grazed for 3 days and ate up all the grass. He then moved them to another paddock and replaced them with 300 chickens who quickly headed to the cow patties and to gobble up their favourite prey juicy grubs.
If the farmer had waited 5 days, the maggots would have turned into flies. The chickens in turn made their nitrous rich waste which is perfect fuel for rebuilding the grasses.
wiki: permaculture
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