On Scientific American’s blog there is an article telling about a tragic anecdotes:
"A female gazelle having suddenly died from something it had eaten, the male stood over the dead body of his mate, butting every one who attempted to touch it, then, suddenly making a spring, struck his head against a wall and fell dead at the side of his companion."
The post suggest to possible explanation:
1. the male gazelle also ate the same thing that killed the female and it caused neurological damages that made him harmful to himself (and others).
2. The gazelle’s action seems similar what is known as “stotting” (jumping in the air with all four legs simultaneously off the ground, like in the photo above) that gazelles do when scared by a predator. In this case, maybe the gazelle perceived humans as predators.
But, just like the author of the post, I’m curious if there is some evidence that some animals commits suicide.
Have you ever heard something about suicidal animals? And if so, is the suicide in animals comparable and the one in humans?