First footage of deep-sea anglerfish pair
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First footage of deep-sea anglerfish pair

August 13, 2019


This is a deep-sea anglerfish mating pair. These animals have rarely been observed in their natural habitat — hundreds to thousands of meters below the ocean’s surface. You’re watching one of the few known videos. And this one shows a sexually parasitic pair for the first time. That means during mating, the tiny male is attached to the female. He gets nutrients and she gets sperm. These specialized fish rarely survive the journey to the surface. Before now, most deep sea anglerfish studies used dead animals pulled up in nets and sometimes preserved in museums. In this case, the research team used a special submersible designed to capture images of creatures that live at these great depths. Like most other members of its order, this anglerfish is known for the bioluminescent, lure-like appendage that drifts in front of its mouth to attract prey. But this is the first time that what may be bioluminescence on the fish’s filaments has been documented. The swaying swarm of thin projections may act like a 3-d array of cat whiskers – sensing dangers and prey in the environment. There’s little to eat at this depth and it is very cold – leaving anglerfish with few calories to spare so it makes sense that as this video shows, the anglerfish female seems to use very little energy– slowly drifting and rolling through the water. But we don’t know much about their metabolism, the bacteria that supply their glow, or how the female’s body doesn’t reject the male’s. The special ship that took this video has been in operation since 2013 and there aren’t many like it in the world. So chances are, many anglerfish mysteries will stay that way for some time to come.

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  1. I would like to thank all involved for this video especially

    Kirsten and Joachim Jakobsen
    Rebikoff-Niggeler Foundation

    Super video quality!

  2. "The tiny male is permanently attached to the female, he gets nutrients and she gets sperm" well, nature knows how shit works

  3. Here I was hoping this was a new Muppet introduction!
    😂😂bwahahahahaha😂😂
    But on a more serious note, truly amazing!

  4. Thank you for observing this fish in their natural habitat, instead of taking the animal hostage, poking and prodding it, forcing it to mate and destining their life to a tiny little tank where you torture it. It gets really tiring wanting to see science and nature related videos, but coming across people, time and time again, that have no problem being completely invasive and unethical to the animals and habitats they encounter or study.

  5. i'm glad they studied the angelfish in it's natural habitat because the ones in the saraha desert are very rare indeed.

  6. The angler fish: nature's way of reminding men what women at the bar actually look like the next morning without their makeup.

  7. Boys there are still thousands of unknown species in the sea, honestly I would be happy if scientists decided to explore it further.

  8. Wow very interesting. Such a huge size differential. Glad they pointed out the male- haha. Didn't see him at all. it looks cool with the"whisker like" sensors.

  9. Um…. but in biological terms, Parasitic would then imply that one organism gets all the benefit, while the other no benefit, and only harm from the symbiosis. Compare this to Commensalism (where one organism has all the benefit, and the other gains nothing, but has no harm) and Mutualism (where both animals benefit from one another).

    And in the video, the angler fish male and female both benefit: the female gets all the sperm she needs to reproduce, while the male gets all the nutrients he needs to survive. And since the zone where they live in is dark and open, you never know where your next meal is, or where your potential mate would be. So always having your source of food and source of reproduction are indeed benefits.

    Since this is Science Magazine and published in 2018, I would have thought them to know that Parasitism is a KIND of symbiosis, but not interchangeable with it's other kinds of symbiosis (Commensalism and Mutualism).

  10. If you're having a bad day just remember, at least you're not a tiny male anglerfish permanently stuck to a female 10 times your size for the rest of your meaningless fish life.

  11. I find it baffling that with all our technological advances, we are still unable to design and build submersibles that can reach the deepest depths of the oceans without running out of fuel or getting crushed under the pressure of deep-sea water!

  12. Wait so it’s the complete opposite of what humans are the male is the parasite and the female swims around while white human relationships the woman is the parasite and the male does all the work

  13. now i don't know if the algorithm decided to recommend this because of area 51 but, the angler fish is kind of pretty in it's own wa

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