File:HL OpForce XRace PitWorm.jpg

Summary
A Pit Worm, a Race X alien in the computer game Half-Life: Opposing Force. Image taken by ZS; original image was auto contrasted and desaturated 25%.

Licensing: Fair use for Race X
The author asserts that the image qualifies fair use for the following reasons:
 * 1) Valve Corporation or Gearbox Software not release location-specific images into public domain.
 * 2) The image is necessary to describe the appearance of an Race X alien; nothing else.
 * 3) The screenshot is not intended to hinder the copyright owner's ability to sell the game.
 * 4) This image is a screenshot and thus immediately falls in fair use.