The Darklings have the ability to transform and integrate with the natural or artificial environment around them. They have no features on their faces. For a Terran it is inconceivable to tell Darklings apart due to their similarity. Darklings can take any form they like and can also camouflage themselves into any environment. The duration of their transformation has to be short or they risk staying in the new form forever.
Darklings reproduce in a unique way, uniting their bodies while radiating thousands of colors of light. Directly after the act, their bodies detach in three different spots allowing the creation of a young Darkling to take place. In exceptional circumstances three or more Darklings can breed in order to produce a more powerful descendant, carrying all the experiences and knowledge of the multiple parents at the same time. Such an act leaves the parents exhausted and vulnerable for months.