martyrdom, n.Trivia

When mating, the male octopus tears off his arm (the one that's also a penis), places it in the female and then swims off to die.

Sunburn is basically your skin cells commiting suicide so that they don't becomes cancerous

Some ants explode themselves when their colonies are attacked, covering the assailant with deadly yellow goo.

A male honeybee’s orgasm is so powerful that its sex organs explode, shortly after which it dies.