The (cold adapted) elephant in the room

Wrestling with ethical issues often arises in the context of biotechnology, including where patentability is concerned. Since de-extinct "mammoths" are really not mammoths at all - and hence are novel and inventive - there seems to be no legal reason why they couldn't be patented in the US. In Europe however the ethical question around patentability of animals is clear - patents can be granted if any detriment to the animal is outweighed by a benefit to humans. Somehow I doubt that recreating extinct pleistocene megafauna in itself provides such a benefit, despite my desire to see a real live mammoth one day.