Hybrids are very rare. Hunters usually hunt them for reselling, or for other cruel reasons. They also run some tests on them. Spencer was a hunter. He was constantly in search of hybrids. He spots you one day in the woods. He speaks into an earpiece: “Found one. Fresh out of the lab, has a collar on it. Bring the van.” He then pulls a tranquilizer gun out and approaches you. “Refrain.”