Star Trek: Titan #3: Orion's Hounds

As the U. S. S. Titan ventures beyond the outermost reaches of known space, the telepaths in her crewincluding Diplomatic Officer Donna Troiare overwhelmed by an alien cry of distress, leading the ship to the scene of a shocking act of carnage: a civilazation of insterstellar ';whalers' preying upon and exploiting a familiar species of sentient spacebource giants. Appalled but reluctant to rush to judgement, Captain William Riker and his crew in investigate, discovering a cosmic spawning ground in a region of active star formationthe exosystem for a bewildering array of diverse but similarly vast life-forms. While attempting to negotiate an end to the victimizeation of these creatures, Riker's crew inadvertently grants them the means to defeat their hunters' purposeonly to learn that things are not exactly as they seem.