I think the study should have been more extensive because now the cat-lovers are running around crying foul. I guess they won't be satisfied until all 150 million stray cats are outfitted with cameras. It's interesting that these were people's PET cats, not ferals. Ferals doing even more damage to native habitat. Slow net connection here, video can take hours to download, so I never watched any of the vids from this study. But I find you mentioning the opossum attack interesting. I would worry more about the safety of that opossum than the cat. One winter I tried feeding one of the shot-dead cats on my land to the last few starving opossum that I had taken under my care. (All the rest of my larger native wildlife starved to death from cats destroying all their food sources.) They were doing well, even having 3 offspring while I took care of them. The only foods they were using and had access to were the vitamin fortified foods I gave them. But when I tried to give them a much-needed protein boost with that cat-meat those opossum promptly died from some disease in the cat. Sad to say the least. And highly alarming -- in that opossum, due to their cooler body temperatures, cannot contract nor transmit many common diseases, not even rabies. They are one of the most disease-free animals in N. America. Yet ... something in that cat-meat was able to kill them all. Cats truly are complete and total wastes of flesh. They can't even be used to feed wild animals safely. Leaving any of these invasive-species cats out in nature, alive OR dead, is no better than intentionally poisoning your native wildlife to death. When ridding your lands of cats, please do so in a manner where you can safely and sanitarily retrieve that body and dispose of it so no other lives come in contact with it. Your wildlife and neighbors will thank you. (If using guns, I'd even advise against using a shotgun, too much disease-filled splatter. Make it clean as possible.)