There are clingy people in this world. You know the type. They text you 47 times in one hour. They show up unannounced. They say things like “I just want to be close to you” and they really, really mean it.
But none of them, and I mean none of them, have anything on the male anglerfish.
This little guy does not just want to be close to you. He wants to become part of your body. Literally. Physically. Forever.
Let us talk about one of the strangest, most dramatic, and honestly kind of heartbreaking love stories in the entire animal kingdom.
First, Meet the Anglerfish
The anglerfish lives in the deep ocean. And when I say deep, I mean the kind of deep where there is no sunlight, no warmth, and honestly no reason for anything to be alive down there. But the anglerfish did not get the memo.
The female anglerfish is the star of the show. She is the one you have probably seen in pictures or in Finding Nemo, the terrifying creature with the glowing light dangling from her forehead like a living fishing rod.
That light is called a bioluminescent lure, and she uses it to attract prey in the pitch-black darkness of the deep sea.
She is big. She is scary. She has a mouth full of teeth that look like they were designed by someone who really hates other fish.
The male anglerfish, on the other hand, is a completely different story.
The Male Anglerfish is Basically a Lost Puppy
The male anglerfish is tiny. We are talking about a creature that is sometimes ten times smaller than the female. He has no fancy glowing lure. He has no impressive teeth. He does not even have a fully working digestive system.
What he does have is a nose that is very, very good at one thing: finding a female.
From the moment he hatches, the male anglerfish has one job. Just one. Find a female. That is it. That is the entire mission of his life. He swims around in the cold, dark ocean, following chemical signals in the water like a man following the smell of jollof rice from three streets away.
And when he finally finds a female? He does not play it cool. He does not send a friend to check if she is interested. He bites her.
Yes. He bites her. On the side of her body.
The Part Where It Gets Really Wild
Now here is where science goes from interesting to absolutely unhinged.
When the male bites the female, his body starts to fuse with hers. His lips, his skin, his tissue; they all merge into her body. His bloodstream connects to hers. Over time, he loses his eyes. He loses his fins. He loses most of his internal organs. His brain shrinks.
He becomes, in the most scientific way possible, a permanent attachment on the female’s body. A little bump. A passenger. A living, breathing, sperm-producing backpack.
The male anglerfish gives up everything to be with her. His identity. His independence. His organs. Everything.
And the female? She just keeps swimming. Living her best life. Going on hunts. Being terrifying. Sometimes carrying multiple males attached to her body at the same time, because apparently one is not enough.
What Scientists Call This (And What We Should Call It)
Scientists call this process “sexual parasitism.” The male is technically a parasite on the female’s body because he survives entirely on nutrients from her blood.
But let us be honest. Science is being very polite here.
What is actually happening is that a tiny, desperate man found a woman he liked, bit her, refused to let go, and slowly merged into her life until he had no life of his own left. He gave up everything. And she just carries him around like a small, forgotten item in a very large bag.
If that is not the plot of at least three romantic movies, I do not know what is.
Why Does the Male Anglerfish Do This?
The deep sea is not a friendly place. It is dark. It is cold. Food is rare. Finding another mate down there is nearly impossible.
So when the male anglerfish finally finds a female, his tiny brain essentially says: “This is it. This is the one. Do not let go.”
And so he does not.
From a survival standpoint, it actually makes sense. Once he is fused to the female, he does not need to hunt anymore. He does not need to navigate the darkness. He gets everything he needs directly from her. He is safe, fed, and technically alive.
It is the ultimate trade-off. He gives up being a person. She gains a permanent companion who asks for nothing except to exist near her. Some people would call that a win. Others would call it a cautionary tale.
The Female Anglerfish Did Not Sign Up for This
Here is the part nobody talks about. The female does not choose this. She does not swipe right on the male. She does not agree to carry him for the rest of her life. He just bites her, and the biology takes over from there.
She just has to deal with it. One day she is out here being a terrifying deep-sea predator, and the next day she has a small male fused to her hip area forever.
Honestly, she is handling it better than most of us would.
What Can We Learn From the Anglerfish?
Nothing. Absolutely nothing. Do not do this. Do not take any relationship advice from the anglerfish. This is not goals. This is not love. This is a deep-sea biological process that works for fish and would be a disaster for anyone else.
But it is a very good reminder that nature is strange and wonderful and sometimes completely ridiculous.
The ocean is full of creatures doing things that no normal mind could have invented, and the anglerfish is one of the best examples.
The male anglerfish is out there right now, in the cold dark water, fused to the side of a female who is probably not thinking about him at all, and he is perfectly content.
That is either beautiful or terrifying. Possibly both.
A Few Quick Anglerfish Facts Before You Go
- There are more than 200 species of anglerfish, and not all of them do the full body-fusion thing. Some males just attach temporarily. A few species have not been studied much at all.
- The glowing lure of the female works because of bacteria living inside it. She carries a whole colony of bioluminescent bacteria in that little light on her head.
- Anglerfish can swallow prey almost twice their own size because their stomachs are incredibly stretchy. She eats. She provides. She does not need anyone.
- The deepest anglerfish species live more than 3,000 metres below the surface of the ocean.
- In 2018, researchers captured the first-ever footage of two anglerfish, male and female, swimming together while fused. It was described as “the most romantic thing in the deep sea.” It was also deeply unsettling.
Nature is out here writing stories that no human could dream up.
And the anglerfish is proof that somewhere in the darkest corner of the ocean, love exists. It is weird, parasitic, and involves losing your organs, but it exists.
Stay curious. Stay weird. And maybe do not bite anyone you like.
