National Geographic unveiled the dark side of penguin love last week, and the Internet wasn’t ready for it.

During a three-minute video, posted by National Geographic on Twitter Friday, a male penguin finds his “wife” with another male penguin, and is thrust into a brutal battle to win her affections back.

As the narrator explains, the jilted penguin’s "strategy is simple: Batter the home wrecker until he leaves.”

A fight breaks out when a husband comes home and finds his wife with another penguin.

— Nat Geo Channel (@NatGeoChannel) November 4, 2016

The penguins beat each other with their flippers, which contain solid bone, unlike other birds, and can be used “like baseball bats,” during combat.

The husband and the homewrecker back away from each other and call for the female penguin to choose the winner. She heartbreakingly chooses the homewrecker and the pair waddle back into their burrow.

With little left to lose, the husband follows the pair back to what was his home and begins a bloody pecking battle with the homewrecker.

At the end of the attack, the female penguin chooses her new love interest again, and the original male penguin is left “defeated and humiliated.”

“She’s got no time for losers,” the narrator explains.

On Twitter, many were disturbed by the bloody display.

What about when you told us that penguins mate for life? Or was that just until something better comes along?

National geographic ruined penguins for me🙁

— maya megat (@mayamegat) November 7, 2016

National Geographic: "Penguins have one life partner forever"


— Yoshiro Yakuza🌸 (@McFrankoSA) November 5, 2016

So penguins, National Geographic's truest narrative of love, can CHEAT?! That's it I'm done I'm out.

— Jenna Bruwer (@jennabruwer) November 5, 2016

So, everyone cheats?

Even penguins aren't faithful 😢😭#NationalGeographic #brokenheart 💔

— Kendall Ofcarcik (@kendallofcarcik) November 6, 2016

😂 even penguins can't be loyal.. thank you National Geographic 😂

— Isaac Luna (@Una_Luna_) November 7, 2016

This is why I don't want to be in a relationship #penguins #nationalgeographic#foreveralone

— EJI (@EJlogic) November 5, 2016

How do we know the female penguin actually cheated? #CantFaceTheTruth

I don't know what's more childish the fight or National Geographic just starting rumors these penguins are cheating without even knowing

— daniel ashton (@DVMFE) November 7, 2016

Bottom line: This was no Happy Feet.

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