Keep the mutation record clean
When a hatch looks different, write down the egg, biome, animal, event state and car before calling it a mutation. A bright visual effect, a limited event reward and a permanent animal mutation may be separate systems.
- Capture the exact mutation name or label shown by the game.
- Record whether the egg was taken during an event.
- Repeat the same route without the event where possible.
- Compare the result with the animal’s normal entry and note any visible value change.
- Publish a probability only when the sample size and denominator are visible and repeatable.
Do not copy mutation odds from a different “steal eggs” game. EarlyWiki will add a real table when the live UI and dated tests support it.