Euthanize is a procedure used by humans to 'put to sleep' or 'put down' an animal. Humans may euthanize animals because they have attacked humans or are permanently paralyzed, have incurable pain or have an incurable disease, and it is kinder to put them out of their pain.


In The Original Series arc

The Quest Begins

When Oka attacks a flat-face, she is taken away to be euthanized.

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