Prehistoric Farm: How to Get Eggs from Fossils and the Sea
Choose the Prehistoric Farm fossil exchange route or sea reptile egg activity, and understand what each acquisition path requires.
The clearest starter egg route in Prehistoric Farm is a completed creature fossil set exchanged at Dr. Ivy's DNA Lab. The official exploration description also identifies stealing sea reptile eggs in the Sunken Grotto. Choose the acquisition task before treating an empty incubator as the problem.
This gameplay session shows a ready fossil set being extracted and the resulting egg moving into incubation. Use that sequence as the example of the lab route.
Complete a creature set for the lab route
Dig at fossil island Dig Sites and track one creature's fossil count. Each Cambrian creature needs five fossils. Bring the completed set to Dr. Ivy on Home Island and use Get Egg for that creature.
Mixed fossils do not replace a completed creature set. If the creature count is short, the next task is collection. If the set is ready, returning to the lab advances it into the egg stage.
Treat sea reptile eggs as their own activity
The Sunken Grotto is named as the place to sneak in and steal sea reptile eggs. That is an acquisition activity separate from digging and exchanging Cambrian fossils. The precise approach route, egg types and interaction controls are not established here.
Do not buy a particular boat or tool solely because a guessed guide claims it unlocks that egg activity. Check the actual destination and requirements in the game before committing resources to a sea collection goal.
Decide what to do after obtaining the egg
An acquired egg needs an unlocked incubator. Getting an egg and hatching it are different tasks; purchasing capacity does not supply a missing fossil set. Start with the egg you can legitimately obtain, then follow its actual hatch timer.
Use the eggs guide for the overall relationship or hatching eggs for the next action. If you want a first creature rather than a specific sea reptile, the documented Cambrian set exchange gives you a concrete starting objective without requiring an unverified grotto route.