True Stories about Animal suicides
A few years ago, Aristotle cited a stallion that threw himself into an abyss after it became apparent that, like Oedipus, he had unknowingly mated with his own mother.
There are many such stories that break the mold, like the lab dog who threw himself in the water, and many others, they are considered fables.
A handsome Black Dog
A black dog, who was known to be “fine, handsome and valuable” was reported to “throw himself into the water” in an attempted suicide. His legs and feet were in “perfect stillness”.
The most strange thing that happened was, when he was dragged out, “he again hastened to the water and tried to sink again” Eventually the handsome dog succeeded in his apparent suicidal mission and died.