Harvesting
The living system of plants and animals which provides the means for humans to survive.
In Eco, players harvest food initially from the wild biomes around them. Plants ripe for the opportunity to harvest sustainably abound. Wild food sources can serve as a supplementary renewable resource, but will quickly crash if taken advantage of. Some plants will be useful for more than just food-- they may provide chemical compounds that can be found no-where else, or the raw materials needed for textiles and clothing.
Different plants require different tools to harvest, such as a shovel, or a scythe. Other species can be picked by hand without a tool. Similarly, some plants are killed when they are harvested, and others will simply re-grow the picked fruits if they continue to grow and be healthy.