Add the following rule with the title “Apes”:

Each Ape has an amount of Food, which defaults to 0 and is tracked in the GNDT under a column named “Food”.

Each Ape has Genetics, which is a list of five Genes, noted in the GNDT by as a list of the first two letters of the name of that Gene under a column named “Genetics” unless noted otherwise. For example: NoNoNoDeSp

The default Genetics is the one noted as NoNoNoNoNo.

The following are Genes and their effects:

- Nothing: This Gene does nothing.
- Speed: This Ape has an additional Lifetime Action.
- Brawn: Gain an additional Food when performing the Hunt action.
- Smell: Gain an additional Food when performing the Forage action.
- Deformed: This Ape can’t use their last Lifetime Action.

The following is known as an Ape Mutating: randomly selecting one of that Ape’s Genes and setting it to be a randomly selected kind of Gene.

Once during each Sunday, a new generation of Ape is born, children of the previously most successful Ape. This is known as a New Generation Event, and is performed by the Monolith. The following happens at that moment, in this order:

- The Genetics of all Apes becomes the same as the Ape with the most Food. If there is more than one Ape with the most Food, then instead an Ape is randomly selected from the set of Apes with the most Food, then the Genetics of all Apes becomes the same as that selected Ape.
- Set the default Genetics to be the one that all Apes have, by changing the sentence in this rule that starts with: “The default Genetics is the one noted as”.
- The Food of all Apes is set to 0.
- For each ape, roll a DICE4. If a 1 is rolled for them there, that Ape Mutates.

Apes have 2 Lifetime Actions per week (with the amount you have left noted in the GNDT under a column called “LA”), with such a week starting/ending at a New Generation Event. The following are Lifetime Actions:

- Hunt: Gain 1 Food.
- Forage: Gain 1 Food.