cloning, 克隆/ 複製/ 選殖

Animal cloning is becoming more common – and cloning extinct species could be on the horizon. Could parks and zoos for these creatures be round the corner?
BBC - Future - The increasingly realistic prospect of ‘extinct animal’ zoos
http://www.bbc.com/future/story/20180328-the-increasingly-realistic-prospect-of-extinct-animal-zoos