PHYSICAL STRUCTURE
Sathar are long, worm like creatures. Their bodies are divided into segments, like an earthworm's. They support their bodies hydrostatically, by pumping liquid into segments so they become hard. A shiney, clear slime coats their skin. Scientist believe they are warm blooded, but no live specimen has ever been studied.

A sathar's head tapers to its mouth, which is circular and ringed with teeth. Each of their two eyes have two pupils. Four tentacles, two on each side of the body, are arranged about 1 meter below the head. The first pair is slender and weak looking and 1 meter long. These end in four smaller finger like tentacles. The second pair are stronger and about 1.2 meters long. These tentacles end in a paddle like foot-pad. The first pair are for fine tool use and the second pair is for heavy lifting and propulsion.

The sathar move by slithering across the ground with the first meter of its body raised. They can also coil like a snake with 1.5 meters of their body raised off the ground.

The color of sathar skin varies from yellow to brown. Tentacles are the same as the body but with a slight greenish tint. The underbelly is pale pink. A pattern of dots, speckles and stripes decorates the back of the head. These patterns are natural on some sathar and tattoos on others.

Some survivors of sathar attacks report that they are not affected by electrical shocks or dose grenades, but these reports have never been confirmed.

SENSES
The sathar's double pupils give it wide angle vision. They can see object in front and to the side at the same time. They smell through two pits in front of their eyes. The sharpness of their senses is not known, but UPF biologist assume their hearing, smell, and taste is about the same as a human's.

SPEECH
Captured recordings show that the sathar can speak human and yazirian languages as well as Pan Galactic. They hiss and lisp when they speak. Thier native language has never been translated or recorded.

SOCIETY AND CUSTOMS
Almost nothing is known about sathar society. They have tried to kill every alien creature they have met in the Frontier, usually with alarming success. No one knows why the sathar attack so viciouslyor what they hope to gain. All attempts to communicate with the sathar peacefully have failed. No sathar have ever been captured alive, because they kill themselves before they can be taken. In one case an entire starship self destructed to avoid being captured. Freeze fields have been applied to several dead sathar in an attempt to have them revived, but biologist have not been able to find a revival technique that works on them.

Scientist have proposed several theories based on observers. The most widely accepted was written by Gdtlask Gltak, a vrusk sociologist. Gltak's theory is that all sathar belong to military units called cadres. The markings on the back of the sathar's head identify its cadre. Each cadre trains its soldiers from the time its born. Gltak theorizes that the sathar attack alien worlds because its military society would fall apart if there was no enemy to fight.

Readers are warned that this is only a theory. Until a sathar is captured alive their true motivation cannot be known.

ATTITUDES
All sathar should be considered hostile and dangerous. Citizens of the Frontier who encounter the sathar are required by law to report the incident immediately. If escape is impossible, citizens are advised to attack on sight, as friendly approaches have always failed in the past.

Sathar also are known to use dralasite, human, yazirian and vrusk agents to overthrow Frontier governments, terrorize citizens, and disrupt trade. Like the sathar themselves these agents are extremely dangerous. Suspicious beings should be reported immediately. Citizens are discouraged from attacking sathar agents as most are trained and experienced killers.