Now the Copenhagen zoo wants to become a "lion mill" so killing healthy animals is still perfectly okay
We couldn't have been more wrong. Yesterday, the Copenhagen zoo killed four lions, two old adults their two ten month-old cubs, because they want to introduce a new male to the remaining females to make more lions, all of whom will spend their lives in captivity and some of whom will undoubtedly be killed in the future because they too will be classified as disposable surplus animals. These four sentient beings were, as was Marius, considered to be expendable because they couldn't be used to make more lions. Zoo workers were also concerned that the new male would kill the youngsters and the captive group wouldn't resemble that of wild prides of lions, as if it previously had. Of course, there is nothing natural about the cage, some might call it an enclosure or pretty it up by calling it "lion habitat", but it is still a cage in which future lions will be mercilessly crammed.
I see coming to a deeper understanding of heinous acts like this as a perfect subject for study for researchers in the field of anthrozoology, the study of human-animal relationships. The cold justification for these killings offered by zoo workers chilled and scared me. Furthermore, these easily avoidable deaths, perversely justified "in the name of conservation", are horrible lessons for youngsters and run counter to global programs in humane education and compassionate conservation.