Marble

Marble is an Earth subspecies, created by user Ninive 

Lore
Marbles become non moving after they have found something to treasure and gaze at as long as that 'thing' exists. This 'thing' can be a nice view, an idea they are contemplating, an old tree, passing herds of Zeeba, a mural, really anything can become the passion of a Marble. If their treasure ceases to hold their passion they will start to move in order to find a new treasure they can loose themselves into. During their contemplation and guarding their colours bleach out so if you ever come across a Marble you can tell by their colour how long they have been immobile.