Cocoons are objects found in the Creature Stage in which creatures of certain species metamorphose, representing the creature evolving into a next-level species. They can also be put in an adventure as fixed objects.

In-game

Creature Stage

Cocoons may appear when the game selects a new or better-evolved creature to replace a more primitive and weaker one. This usually occurs when the player's creature's brain capacity increases, generally towards the beginning of the Creature Stage. The previous creatures will jump and spin, transforming into a cocoon, which will then lay dormant for a few minutes, before the new, superior creatures hatch out and assume control of the nest.

Sometimes, an egg may be laid before the creatures go into the cocoon phase. This egg can be attacked without the notice of the other creatures. If the egg hatches, it will emerge as the more advanced creature that will hatch out of the other cocoons. Also, a single alpha creature may not metamorphose and instead watch over the cocoons. On the occasions this does happen, the superior creatures either kill, chase off, or ignore the lesser species.

When cocoons hatch, a green mist will shoot out, and a new creature or stronger version of the old creature inside will appear. They can be interacted with after 30 seconds. After a minute or so one of the hatched creatures will lay an egg.

Galactic Adventures

Cocoons can be added as decorative objects in the Adventure Creator found in the Static Ornaments folder from Static Ornaments. However, they are completely still and creatures cannot emerge from them.