Can animals Commit suicide?

i reckon they can, especially kangaroos when they come bouncing out and hit your car. causing damage. i had a lamb not move the other from the front of the car, i went forward and hit a little. i think it fell over, but got back up. (don't panick it's a pet and it won't leave home keeps coming back)

i do not know but mostly if they are starve by their owner they could die or mostly being killed for consumption.