Sexual Deprivation Increases Alcohol Intake in Drosophila (the original paper, and a précis, are both behind paywalls; the précis notes "anthropomorphizing the results from flies is difficult to suppress, but the relevance to human behavior is obviously not yet established")
Fruit flies take death lying down. Some scientist somewhere noticed an interesting death habit, if you will, in fruit flies. One day they flop over upside down, and stay there, until they die - almost always ~14 days later. The live approximately 60 days. The point? They believe that something naturally triggers the onset of death and dying. Interesting.