Sure, when their sick. I've seen two birds commit sucide over the years.
no,their brains are wired for instinct only,that includes survival,a human brain is much more complex in that it evolved into a more emotional rollercoaster ride
name a animal that commits suicide them,and don't say monkeys
1000's of Lemmings jump to there deaths off Cliffs every year.
Of course. They don't happen to kill themselves on accident
I knew someone who had a dog that tried to commit suicide. The dog would wander out into a busy intersection and lie down ignoring traffic. The owner was threatened with fines because it tangle up traffic until someone would drag the dog off the street, but the dog kept going back. Its vet figured the dog was depressed. I never could figure out why the dog was depressed.