However, the sabre-tooths were not naturally an aggressive species and were not interested in fighting for the aliens. The Jurassic Explorers, on board the Lightning Bolt, found the creatures on the planet where they were being trained and felt sorry for them, taking them away from their masters. Alson the dryptosaurus became a special friend to Fangal, the sabre-tooths' leader. The enraged Battalasks pursued the Explorers, trying to recapture their test subjects, engaging them in battle. The Explorers survived the encounter, but never returned to the Jurassic Quadrant for fear that the Battalasks would follow them, and Alson died in his old age away from home, leaving the sabre-tooths alone.