Add to Anatomy as another bullet in its list:

Nymph: When an Organ morphs into Nymph state, it loses all Creatures it is attached to (its “Creature” column in the GNDT becomes “-” to reflect the vacancy). Nymphs have representation on the map as [N:xxx], with xxx being that Organ’s name. Nymphs, when they become such, have their location set to be the same location as the Creature they just lost. Nymphs, as a daily action, can move its location to a cell adjacent to its current location. The Nymph can ask to merge with another Creature which is on its same cell, by making a blog post to reflect this - this post is a Merge Request. Once 3 or more Organs that are part of the Creature the Merge Request is directed at state in a comment that they Welcome the Nymph, the Nymph becomes part of their Creature, and its state changes to Amorphous.

In Creatures, change “Each Organ is part of one Creature, which can be referred to as that Organ’s Creature.” to:

Each non-Nymph Organ is part of one Creature, which can be referred to as that Organ’s Creature. Nymphs are part of no creature.