02/12/2013 06:29 pm ET Updated Apr 14, 2013

Love to Die For (SLIDESHOW)

Which Species Die -- or Kill -- for Love?

We've all seen those beautiful penguin photos, beaks together forming a heart, on Valentine's Day. And don't get us wrong -- we love how adorable and sweet nature can be. But just for fun, we thought we'd explore the darker side of love in the wild -- with animals that are willing to die for it! Maybe they've been listening to too much Prince: "You just leave it all up to me; my love will be your food."

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Love to Die For