“It could be a slippery slope,” Dellinger said. “For instance, you can’t just turn a male mountain lion loose in new territory without making existent lions unhappy about it. There are also liability considerations, as well as the worrisome possibility that as soon as you let a mountain lion go on the far side of a freeway, it might try to cross back over.”
Source: Los Angeles Times March 20, 2019 14:02 UTC