Eggs

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Eggs are items found in Subnautica. They are the unhatched versions of their respective Fauna. Until they hatch, the egg will be labeled as an unknown creature egg, changing to match the name of the creature the egg contained once it hatches. An egg can be identified by where it was found, its appearance, and its size (see table below).

Almost all Eggs can be placed inside an Alien Containment. After placing an egg inside an Alien Containment, it will stay where it was placed. After one day the egg will hatch into a smaller version of its respective species. The hatched creature will slowly grow until it is mildly full sized or can fit the confines of the Alien Containment. They can die inside of the aquarium however, if the aquarium's population limit is surpassed.

Baby creatures can be picked up and placed outside in the water, where they will instantly become fully grown. Most normally aggressive creatures will not attack the player if hatched in the aquarium, allowing the player to scan it even after it is released in the wild. An exception is the Ampeel, as its electric shocks still apply damage, and the Crabsquid.

Eggs are also capable of being destroyed before they hatch. Hits with a knife will slice open the egg, resulting in no creature being spawned. Crashfish explosions can destroy their own eggs and habitat if they are too close. They can also be destroyed by a Prawn Suit with a single punch. Blasting an Egg using a Propulsion Cannon or Repulsion Cannon will result in their demise.

Eggs can be found in their species' respective Biomes, however, due to the game's physics in the game engine, an egg can roll into another biome or cave. An example of this is finding a Stalker egg in the Jellyshroom Cave.

Eggs can also be used as fuel for the Bioreactor, though they provide far less energy than a hatched creature.

More information and animations can be found on Trello.

Data Bank Entry

 * Alien Eggs

Gallery
Ampeel Egg
 * Normal Eggs
 * Unique Eggs
 * Other

Boneshark Egg

Crabsnake Egg

Crabsquid Egg

Crashfish Egg

Cuddlefish Egg

Gasopod Egg

Jellyray Egg

Lava Lizard Egg

Mesmer Egg

Rabbit Ray Egg

Sand Shark Egg

Shuttlebug Egg

Spadefish or Reefback LeviathanEgg

Stalker Egg

Add a photo to this gallery

Trivia

 * The bulbs of the Giant Cove Tree in the Lost River are actually Ghost Leviathan Eggs, but can't be interacted with.
 * Sea Dragon Leviathan Eggs used to share the same model of the Crabsquid Egg.