Takaran

Takarans are a sapient, spacefaring humanoid race which hails from planet Takara. Their skin color is green with meskling lines of blue.

The Takaran physiology is amazingly different from that of most other intelligent species known: their internal organs are less specialized and more evenly distributed inside the body, rendering them extremely resistant to physical injuries. They are also able to voluntarily control cellular activity, which can be done in a specific part of the body which has been harmed, in order to slow down the injure; or in the whole body, allowing them to consciously simulate death. This "possum playing" is convincing enough to trick even experienced doctors, although those already familiar with this Takaran ability may be able to tell whether a Takaran is truly dead or not by checking the rate of cellular decay in their bodies.

They appear to be a deceiving and bellicose species; but then again this might be misleading considering only one member of the race has appeared in canon so far

Appearances: Star Trek: The Next Generation - "Suspicions"