 Why are they hunting the farn beast?
"I wish to God I'd never heard of a farn beast," Ri said. "Everybody and his brother had heard the rumor that farn beasts were somewhere around here. "After Extrone said he'd hunt farn beasts, even if it meant going to the alien system? Too many people already know about the farn beasts. The rocket roared directly over Extrone's tent, turned slowly, spouting fuel expensively, and settled into the scrub forest, turning the vegetation beneath it sere by its blasts. "You'll destroy this one, too," Extrone said. "We ... located signs of the farn beast, sir. "You were, I believe, the first ever to kill a farn beast?" he said.
 This is a vacation hunting trip for Extrone.
 This is a vacation hunting trip for Extrone.  They are hunting the farn beasts because farn beasts are dangerous.  Farn beasts are dangerous creatures that must be eliminated.  Farn beasts are delicious.