Have you heard about Marius the giraffe?

I just heard about this. In the Copenhagen Zoo, a 2-year-old giraffe was euthanized because his genes were overepresented in the captive giraffe population. His corpse was then fed to the zoo's lions. There had been online petitions, pleas, offers to take in Marius, but the zoo decided to do this anyway.
Thoughts?
Have you heard about Marius the giraffe?
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