DNA works like this:
To create DNA you need an enmatter refiner, the DNA fragments, and the correct combination and amount of animal parts for a particular animal. Just toss all the parts together in the refiner along with the proper DNA fragment, hit refine, and POOF! You have Exa or Bery or Armax or whatever DNA unit you desire.
There is no official list of what types of DNA fragments are needed or what animal parts are needed to create DNA for all the different animal types. There are a few unofficial lists out there, but even most of those only contain the recipes for the most common animals like merps, exas, and berys.
Once you have a DNA unit, you can either sell it or put it in the fertilizing station terminal for your land area. Once it is in the fertilizing station, it is there permanently. If you remove the DNA from the ferilitizing station, it disappears forever and cannot be recovered. So a warning to any land owners who own a land area with rare or expensive DNA on them: it cannot be recovered if it is removed.
Once you have a DNA on your land area, you can add fertilizer to the fertilizing station by operating the feritilizer station terminal. Fertilizer keeps the creatures spawning on your land area, and keeps them at the desired maturity. Once the fertilizer runs out, the maturity and spawn level on the land area will decrease to almost none of only young creatures on the land area. If there is plenty of fertilizer in the fertilizer station, the spawn and maturity levels can be adjusted as desired between maximum/minimum spawn number and maximum/minimum maturity level. Most land areas have more than one spawn area and therefore have more than one slot for a DNA at the fertilizer station. Each DNA slot is independent of the other, so the maturity level and spawn rates can be adjusted for each individual slot at the fertilizer station. Usually, the spawn location for each individual slot is different. So, for example, if you have 2 DNA slots, one slot may spawn creatures on the east side of the land area, while the other spawns creatures on the west end.
