Close, but not quite a confession. It didn't change the fact that he was still possibly wrong.
"I'm no expert, Reese, but nature requires balance. There can't be prey animals without predatory ones. The likelihood that there was one predator and no more in the whole jungle is really, really low." She was trying to let him off the hook without being ignorant to the way the universe tended to work in order to keep a balance in place. It was the only way anything could ever truly survive. "So, all the same...I'd rather we bleed it out here than leave the trail back to camp."