sentients
"BERSERKERS"

PSYCHOLOGY
The behavior of their probes suggest that this race prefers anonymous preemptive strikes over direct confrontation; leading researchers hypothesize that they are overly xenophobic and paranoid.

HISTORY
In early 2260 a Berserker probe entered Babylon 5 space and demanded answers to its questions. Fortunately, Captain Sheridan refused to answer, causing the probe to move on to another target. Before it left the Tigris Sector, Sheridan ordered a maintenance 'bot to transmit the answers to the probe. The Berserker detonated, annihilating only the 'bot and itself.

TECHNOLOGY
Gravitic; (see Berserker Probeships)