Anatomically Correct Mesopelagic Aves The Next CEO of Stack OverflowPlanet of the Aves: AquabirdsAnatomically Correct HecatoncheiresAnatomically Correct MurlocsAnatomically correct furryAnatomically Correct AhuizotlAnatomically correct vampiresAnatomically correct akanameAnatomically Correct TrollsAnatomically correct ghoulsAnatomically correct GoronAnatomically correct radio communication

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Anatomically Correct Mesopelagic Aves



The Next CEO of Stack OverflowPlanet of the Aves: AquabirdsAnatomically Correct HecatoncheiresAnatomically Correct MurlocsAnatomically correct furryAnatomically Correct AhuizotlAnatomically correct vampiresAnatomically correct akanameAnatomically Correct TrollsAnatomically correct ghoulsAnatomically correct GoronAnatomically correct radio communication










7












$begingroup$


Recently I had a vision of a colossal underwater bird-like figure.



I would describe it as follows:



  • Roughly the wingspan of the length of a blue whale

  • Snow-white

  • Typical shape and feathering of a bird of prey (I may have mistaken something else for feathers)

  • Gliding into the depth, probably in the mesopelagic/twilight zone

Since such a creature couldn't possibly be an actual bird, unlike the aqua-bird, what is my giant mid-sea bird?










share|improve this question











$endgroup$







  • 1




    $begingroup$
    The wingspan of a blue whale... in the length or in the breadth of the whale?
    $endgroup$
    – L.Dutch
    18 hours ago






  • 1




    $begingroup$
    @L.Dutch The wingspan of the creature is roughly the length of a blue whale.
    $endgroup$
    – A Lambent Eye
    17 hours ago










  • $begingroup$
    @cobaltduck The light may have tricked my eye into thinking they were feathers...
    $endgroup$
    – A Lambent Eye
    17 hours ago






  • 1




    $begingroup$
    "During the Late Eocene and the Early Oligocene (40–30 mya), some lineages of gigantic penguins existed. Nordenskjoeld's giant penguin (Anthropornis nordenskjoeldi) was the tallest, growing nearly 1.80 meters (5.9 feet) tall. The New Zealand giant penguin (Pachydyptes ponderosus) was probably the heaviest, weighing 80 kg or more. Both were found on New Zealand, the former also in the Antarctic farther eastwards." (Wikipedia, s.v. Pinguin)
    $endgroup$
    – AlexP
    10 hours ago
















7












$begingroup$


Recently I had a vision of a colossal underwater bird-like figure.



I would describe it as follows:



  • Roughly the wingspan of the length of a blue whale

  • Snow-white

  • Typical shape and feathering of a bird of prey (I may have mistaken something else for feathers)

  • Gliding into the depth, probably in the mesopelagic/twilight zone

Since such a creature couldn't possibly be an actual bird, unlike the aqua-bird, what is my giant mid-sea bird?










share|improve this question











$endgroup$







  • 1




    $begingroup$
    The wingspan of a blue whale... in the length or in the breadth of the whale?
    $endgroup$
    – L.Dutch
    18 hours ago






  • 1




    $begingroup$
    @L.Dutch The wingspan of the creature is roughly the length of a blue whale.
    $endgroup$
    – A Lambent Eye
    17 hours ago










  • $begingroup$
    @cobaltduck The light may have tricked my eye into thinking they were feathers...
    $endgroup$
    – A Lambent Eye
    17 hours ago






  • 1




    $begingroup$
    "During the Late Eocene and the Early Oligocene (40–30 mya), some lineages of gigantic penguins existed. Nordenskjoeld's giant penguin (Anthropornis nordenskjoeldi) was the tallest, growing nearly 1.80 meters (5.9 feet) tall. The New Zealand giant penguin (Pachydyptes ponderosus) was probably the heaviest, weighing 80 kg or more. Both were found on New Zealand, the former also in the Antarctic farther eastwards." (Wikipedia, s.v. Pinguin)
    $endgroup$
    – AlexP
    10 hours ago














7












7








7





$begingroup$


Recently I had a vision of a colossal underwater bird-like figure.



I would describe it as follows:



  • Roughly the wingspan of the length of a blue whale

  • Snow-white

  • Typical shape and feathering of a bird of prey (I may have mistaken something else for feathers)

  • Gliding into the depth, probably in the mesopelagic/twilight zone

Since such a creature couldn't possibly be an actual bird, unlike the aqua-bird, what is my giant mid-sea bird?










share|improve this question











$endgroup$




Recently I had a vision of a colossal underwater bird-like figure.



I would describe it as follows:



  • Roughly the wingspan of the length of a blue whale

  • Snow-white

  • Typical shape and feathering of a bird of prey (I may have mistaken something else for feathers)

  • Gliding into the depth, probably in the mesopelagic/twilight zone

Since such a creature couldn't possibly be an actual bird, unlike the aqua-bird, what is my giant mid-sea bird?







creature-design sea-creatures anatomically-correct






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 17 hours ago







A Lambent Eye

















asked 18 hours ago









A Lambent EyeA Lambent Eye

1,746732




1,746732







  • 1




    $begingroup$
    The wingspan of a blue whale... in the length or in the breadth of the whale?
    $endgroup$
    – L.Dutch
    18 hours ago






  • 1




    $begingroup$
    @L.Dutch The wingspan of the creature is roughly the length of a blue whale.
    $endgroup$
    – A Lambent Eye
    17 hours ago










  • $begingroup$
    @cobaltduck The light may have tricked my eye into thinking they were feathers...
    $endgroup$
    – A Lambent Eye
    17 hours ago






  • 1




    $begingroup$
    "During the Late Eocene and the Early Oligocene (40–30 mya), some lineages of gigantic penguins existed. Nordenskjoeld's giant penguin (Anthropornis nordenskjoeldi) was the tallest, growing nearly 1.80 meters (5.9 feet) tall. The New Zealand giant penguin (Pachydyptes ponderosus) was probably the heaviest, weighing 80 kg or more. Both were found on New Zealand, the former also in the Antarctic farther eastwards." (Wikipedia, s.v. Pinguin)
    $endgroup$
    – AlexP
    10 hours ago













  • 1




    $begingroup$
    The wingspan of a blue whale... in the length or in the breadth of the whale?
    $endgroup$
    – L.Dutch
    18 hours ago






  • 1




    $begingroup$
    @L.Dutch The wingspan of the creature is roughly the length of a blue whale.
    $endgroup$
    – A Lambent Eye
    17 hours ago










  • $begingroup$
    @cobaltduck The light may have tricked my eye into thinking they were feathers...
    $endgroup$
    – A Lambent Eye
    17 hours ago






  • 1




    $begingroup$
    "During the Late Eocene and the Early Oligocene (40–30 mya), some lineages of gigantic penguins existed. Nordenskjoeld's giant penguin (Anthropornis nordenskjoeldi) was the tallest, growing nearly 1.80 meters (5.9 feet) tall. The New Zealand giant penguin (Pachydyptes ponderosus) was probably the heaviest, weighing 80 kg or more. Both were found on New Zealand, the former also in the Antarctic farther eastwards." (Wikipedia, s.v. Pinguin)
    $endgroup$
    – AlexP
    10 hours ago








1




1




$begingroup$
The wingspan of a blue whale... in the length or in the breadth of the whale?
$endgroup$
– L.Dutch
18 hours ago




$begingroup$
The wingspan of a blue whale... in the length or in the breadth of the whale?
$endgroup$
– L.Dutch
18 hours ago




1




1




$begingroup$
@L.Dutch The wingspan of the creature is roughly the length of a blue whale.
$endgroup$
– A Lambent Eye
17 hours ago




$begingroup$
@L.Dutch The wingspan of the creature is roughly the length of a blue whale.
$endgroup$
– A Lambent Eye
17 hours ago












$begingroup$
@cobaltduck The light may have tricked my eye into thinking they were feathers...
$endgroup$
– A Lambent Eye
17 hours ago




$begingroup$
@cobaltduck The light may have tricked my eye into thinking they were feathers...
$endgroup$
– A Lambent Eye
17 hours ago




1




1




$begingroup$
"During the Late Eocene and the Early Oligocene (40–30 mya), some lineages of gigantic penguins existed. Nordenskjoeld's giant penguin (Anthropornis nordenskjoeldi) was the tallest, growing nearly 1.80 meters (5.9 feet) tall. The New Zealand giant penguin (Pachydyptes ponderosus) was probably the heaviest, weighing 80 kg or more. Both were found on New Zealand, the former also in the Antarctic farther eastwards." (Wikipedia, s.v. Pinguin)
$endgroup$
– AlexP
10 hours ago





$begingroup$
"During the Late Eocene and the Early Oligocene (40–30 mya), some lineages of gigantic penguins existed. Nordenskjoeld's giant penguin (Anthropornis nordenskjoeldi) was the tallest, growing nearly 1.80 meters (5.9 feet) tall. The New Zealand giant penguin (Pachydyptes ponderosus) was probably the heaviest, weighing 80 kg or more. Both were found on New Zealand, the former also in the Antarctic farther eastwards." (Wikipedia, s.v. Pinguin)
$endgroup$
– AlexP
10 hours ago











4 Answers
4






active

oldest

votes


















7












$begingroup$

Let's start with something in the Real World (TM), then try to see whether we can manipulate its future evolution into your creature. The thing I have in mind is the humble gannet, birds of the Morus genus. As seen in this article at Media Drum World, when these birds feed, they spend quite a bit of time swimming to a bit of depth, and do so quite adeptly.



enter image description here



We begin with two-out-of-four of your features already in place: Snow-white, and typical shape and feathering of a bird of prey. We just need to figure out how to grow it much, much larger, and get it to abandon its life in the skies and greatly increase its diving depth. How? The usual evolutionary pressures: eat, don't get eaten, make more of your kind (i.e. sex).



As the fish dive deeper to escape, the mega-gannet must follow. But now the sharks, which already compete with the gannet at the bait ball, have a better chance to pick them off along side the fish. Time to get larger, too large for a shark to swallow. This will eventually make it too large to fly. Alongside this, the mega-gannet will probably become swifter at swimming. I'm uncertain whether the mega-gannet might develop a blubber layer, or if feathers can adapt to provide cold-water protection (penguins, for example, have both). Finally, those mega-gannet which are most successful at eating and not getting eaten will also be more successful at breeding, and these traits will augment in each generation.



Given the right circumstances and a few million years, anything can happen.






share|improve this answer











$endgroup$












  • $begingroup$
    change in bone density and muscular structure. The change in medium the bird moves through would require different physiological changes. Penguins and chickens have a higher bone density, so its not unheard of for that adaptation to occur in birds.
    $endgroup$
    – Sonvar
    7 hours ago


















7












$begingroup$

It's for sure the notorious Pinguinus Humongous.



It's a descendant from penguins, which, instead of feeding on small fishes, decided to go big and hunt for dolphins and other large sea mammals.



Its size is necessary for hunting those preys, and the feathers come from its ancestors being birds adapted to the sea environment.






share|improve this answer











$endgroup$












  • $begingroup$
    Pinguinus, not Penguinus. And they are auks, not penguins. Otherwise it's fine. If you want penguins, that would likely be a descendant of Anthropornis, possibly Dinanthropornis colossicus.
    $endgroup$
    – AlexP
    10 hours ago



















4












$begingroup$

Except for the feathers, your creature is rather like a manta ray: https://en.wikipedia.org/wiki/Manta_ray



So convergent evolution is your friend here. Just as the demands of hydrodynamics cause sharks, tuna, dolphins, and ichthyosaurs to all look much the same to a casual eye, your mesopelagic bird is descended from penguins that evolved into occupying the same environmental niche as manta.






share|improve this answer









$endgroup$




















    0












    $begingroup$

    Giant nudibranch.



    nudibranch
    source



    These are ocean animals. They swim slowly along as I imagine your creature might. They can have a vaguely avian outline as seen here.



    Known nudibranchs of course do not get to the size you want, but maybe they could. The molluscan body plan can scale up. Squids get big.






    share|improve this answer









    $endgroup$













      Your Answer





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      4 Answers
      4






      active

      oldest

      votes








      4 Answers
      4






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      7












      $begingroup$

      Let's start with something in the Real World (TM), then try to see whether we can manipulate its future evolution into your creature. The thing I have in mind is the humble gannet, birds of the Morus genus. As seen in this article at Media Drum World, when these birds feed, they spend quite a bit of time swimming to a bit of depth, and do so quite adeptly.



      enter image description here



      We begin with two-out-of-four of your features already in place: Snow-white, and typical shape and feathering of a bird of prey. We just need to figure out how to grow it much, much larger, and get it to abandon its life in the skies and greatly increase its diving depth. How? The usual evolutionary pressures: eat, don't get eaten, make more of your kind (i.e. sex).



      As the fish dive deeper to escape, the mega-gannet must follow. But now the sharks, which already compete with the gannet at the bait ball, have a better chance to pick them off along side the fish. Time to get larger, too large for a shark to swallow. This will eventually make it too large to fly. Alongside this, the mega-gannet will probably become swifter at swimming. I'm uncertain whether the mega-gannet might develop a blubber layer, or if feathers can adapt to provide cold-water protection (penguins, for example, have both). Finally, those mega-gannet which are most successful at eating and not getting eaten will also be more successful at breeding, and these traits will augment in each generation.



      Given the right circumstances and a few million years, anything can happen.






      share|improve this answer











      $endgroup$












      • $begingroup$
        change in bone density and muscular structure. The change in medium the bird moves through would require different physiological changes. Penguins and chickens have a higher bone density, so its not unheard of for that adaptation to occur in birds.
        $endgroup$
        – Sonvar
        7 hours ago















      7












      $begingroup$

      Let's start with something in the Real World (TM), then try to see whether we can manipulate its future evolution into your creature. The thing I have in mind is the humble gannet, birds of the Morus genus. As seen in this article at Media Drum World, when these birds feed, they spend quite a bit of time swimming to a bit of depth, and do so quite adeptly.



      enter image description here



      We begin with two-out-of-four of your features already in place: Snow-white, and typical shape and feathering of a bird of prey. We just need to figure out how to grow it much, much larger, and get it to abandon its life in the skies and greatly increase its diving depth. How? The usual evolutionary pressures: eat, don't get eaten, make more of your kind (i.e. sex).



      As the fish dive deeper to escape, the mega-gannet must follow. But now the sharks, which already compete with the gannet at the bait ball, have a better chance to pick them off along side the fish. Time to get larger, too large for a shark to swallow. This will eventually make it too large to fly. Alongside this, the mega-gannet will probably become swifter at swimming. I'm uncertain whether the mega-gannet might develop a blubber layer, or if feathers can adapt to provide cold-water protection (penguins, for example, have both). Finally, those mega-gannet which are most successful at eating and not getting eaten will also be more successful at breeding, and these traits will augment in each generation.



      Given the right circumstances and a few million years, anything can happen.






      share|improve this answer











      $endgroup$












      • $begingroup$
        change in bone density and muscular structure. The change in medium the bird moves through would require different physiological changes. Penguins and chickens have a higher bone density, so its not unheard of for that adaptation to occur in birds.
        $endgroup$
        – Sonvar
        7 hours ago













      7












      7








      7





      $begingroup$

      Let's start with something in the Real World (TM), then try to see whether we can manipulate its future evolution into your creature. The thing I have in mind is the humble gannet, birds of the Morus genus. As seen in this article at Media Drum World, when these birds feed, they spend quite a bit of time swimming to a bit of depth, and do so quite adeptly.



      enter image description here



      We begin with two-out-of-four of your features already in place: Snow-white, and typical shape and feathering of a bird of prey. We just need to figure out how to grow it much, much larger, and get it to abandon its life in the skies and greatly increase its diving depth. How? The usual evolutionary pressures: eat, don't get eaten, make more of your kind (i.e. sex).



      As the fish dive deeper to escape, the mega-gannet must follow. But now the sharks, which already compete with the gannet at the bait ball, have a better chance to pick them off along side the fish. Time to get larger, too large for a shark to swallow. This will eventually make it too large to fly. Alongside this, the mega-gannet will probably become swifter at swimming. I'm uncertain whether the mega-gannet might develop a blubber layer, or if feathers can adapt to provide cold-water protection (penguins, for example, have both). Finally, those mega-gannet which are most successful at eating and not getting eaten will also be more successful at breeding, and these traits will augment in each generation.



      Given the right circumstances and a few million years, anything can happen.






      share|improve this answer











      $endgroup$



      Let's start with something in the Real World (TM), then try to see whether we can manipulate its future evolution into your creature. The thing I have in mind is the humble gannet, birds of the Morus genus. As seen in this article at Media Drum World, when these birds feed, they spend quite a bit of time swimming to a bit of depth, and do so quite adeptly.



      enter image description here



      We begin with two-out-of-four of your features already in place: Snow-white, and typical shape and feathering of a bird of prey. We just need to figure out how to grow it much, much larger, and get it to abandon its life in the skies and greatly increase its diving depth. How? The usual evolutionary pressures: eat, don't get eaten, make more of your kind (i.e. sex).



      As the fish dive deeper to escape, the mega-gannet must follow. But now the sharks, which already compete with the gannet at the bait ball, have a better chance to pick them off along side the fish. Time to get larger, too large for a shark to swallow. This will eventually make it too large to fly. Alongside this, the mega-gannet will probably become swifter at swimming. I'm uncertain whether the mega-gannet might develop a blubber layer, or if feathers can adapt to provide cold-water protection (penguins, for example, have both). Finally, those mega-gannet which are most successful at eating and not getting eaten will also be more successful at breeding, and these traits will augment in each generation.



      Given the right circumstances and a few million years, anything can happen.







      share|improve this answer














      share|improve this answer



      share|improve this answer








      edited 13 hours ago

























      answered 17 hours ago









      cobaltduckcobaltduck

      7,5762150




      7,5762150











      • $begingroup$
        change in bone density and muscular structure. The change in medium the bird moves through would require different physiological changes. Penguins and chickens have a higher bone density, so its not unheard of for that adaptation to occur in birds.
        $endgroup$
        – Sonvar
        7 hours ago
















      • $begingroup$
        change in bone density and muscular structure. The change in medium the bird moves through would require different physiological changes. Penguins and chickens have a higher bone density, so its not unheard of for that adaptation to occur in birds.
        $endgroup$
        – Sonvar
        7 hours ago















      $begingroup$
      change in bone density and muscular structure. The change in medium the bird moves through would require different physiological changes. Penguins and chickens have a higher bone density, so its not unheard of for that adaptation to occur in birds.
      $endgroup$
      – Sonvar
      7 hours ago




      $begingroup$
      change in bone density and muscular structure. The change in medium the bird moves through would require different physiological changes. Penguins and chickens have a higher bone density, so its not unheard of for that adaptation to occur in birds.
      $endgroup$
      – Sonvar
      7 hours ago











      7












      $begingroup$

      It's for sure the notorious Pinguinus Humongous.



      It's a descendant from penguins, which, instead of feeding on small fishes, decided to go big and hunt for dolphins and other large sea mammals.



      Its size is necessary for hunting those preys, and the feathers come from its ancestors being birds adapted to the sea environment.






      share|improve this answer











      $endgroup$












      • $begingroup$
        Pinguinus, not Penguinus. And they are auks, not penguins. Otherwise it's fine. If you want penguins, that would likely be a descendant of Anthropornis, possibly Dinanthropornis colossicus.
        $endgroup$
        – AlexP
        10 hours ago
















      7












      $begingroup$

      It's for sure the notorious Pinguinus Humongous.



      It's a descendant from penguins, which, instead of feeding on small fishes, decided to go big and hunt for dolphins and other large sea mammals.



      Its size is necessary for hunting those preys, and the feathers come from its ancestors being birds adapted to the sea environment.






      share|improve this answer











      $endgroup$












      • $begingroup$
        Pinguinus, not Penguinus. And they are auks, not penguins. Otherwise it's fine. If you want penguins, that would likely be a descendant of Anthropornis, possibly Dinanthropornis colossicus.
        $endgroup$
        – AlexP
        10 hours ago














      7












      7








      7





      $begingroup$

      It's for sure the notorious Pinguinus Humongous.



      It's a descendant from penguins, which, instead of feeding on small fishes, decided to go big and hunt for dolphins and other large sea mammals.



      Its size is necessary for hunting those preys, and the feathers come from its ancestors being birds adapted to the sea environment.






      share|improve this answer











      $endgroup$



      It's for sure the notorious Pinguinus Humongous.



      It's a descendant from penguins, which, instead of feeding on small fishes, decided to go big and hunt for dolphins and other large sea mammals.



      Its size is necessary for hunting those preys, and the feathers come from its ancestors being birds adapted to the sea environment.







      share|improve this answer














      share|improve this answer



      share|improve this answer








      edited 10 hours ago

























      answered 17 hours ago









      L.DutchL.Dutch

      89.2k29208433




      89.2k29208433











      • $begingroup$
        Pinguinus, not Penguinus. And they are auks, not penguins. Otherwise it's fine. If you want penguins, that would likely be a descendant of Anthropornis, possibly Dinanthropornis colossicus.
        $endgroup$
        – AlexP
        10 hours ago

















      • $begingroup$
        Pinguinus, not Penguinus. And they are auks, not penguins. Otherwise it's fine. If you want penguins, that would likely be a descendant of Anthropornis, possibly Dinanthropornis colossicus.
        $endgroup$
        – AlexP
        10 hours ago
















      $begingroup$
      Pinguinus, not Penguinus. And they are auks, not penguins. Otherwise it's fine. If you want penguins, that would likely be a descendant of Anthropornis, possibly Dinanthropornis colossicus.
      $endgroup$
      – AlexP
      10 hours ago





      $begingroup$
      Pinguinus, not Penguinus. And they are auks, not penguins. Otherwise it's fine. If you want penguins, that would likely be a descendant of Anthropornis, possibly Dinanthropornis colossicus.
      $endgroup$
      – AlexP
      10 hours ago












      4












      $begingroup$

      Except for the feathers, your creature is rather like a manta ray: https://en.wikipedia.org/wiki/Manta_ray



      So convergent evolution is your friend here. Just as the demands of hydrodynamics cause sharks, tuna, dolphins, and ichthyosaurs to all look much the same to a casual eye, your mesopelagic bird is descended from penguins that evolved into occupying the same environmental niche as manta.






      share|improve this answer









      $endgroup$

















        4












        $begingroup$

        Except for the feathers, your creature is rather like a manta ray: https://en.wikipedia.org/wiki/Manta_ray



        So convergent evolution is your friend here. Just as the demands of hydrodynamics cause sharks, tuna, dolphins, and ichthyosaurs to all look much the same to a casual eye, your mesopelagic bird is descended from penguins that evolved into occupying the same environmental niche as manta.






        share|improve this answer









        $endgroup$















          4












          4








          4





          $begingroup$

          Except for the feathers, your creature is rather like a manta ray: https://en.wikipedia.org/wiki/Manta_ray



          So convergent evolution is your friend here. Just as the demands of hydrodynamics cause sharks, tuna, dolphins, and ichthyosaurs to all look much the same to a casual eye, your mesopelagic bird is descended from penguins that evolved into occupying the same environmental niche as manta.






          share|improve this answer









          $endgroup$



          Except for the feathers, your creature is rather like a manta ray: https://en.wikipedia.org/wiki/Manta_ray



          So convergent evolution is your friend here. Just as the demands of hydrodynamics cause sharks, tuna, dolphins, and ichthyosaurs to all look much the same to a casual eye, your mesopelagic bird is descended from penguins that evolved into occupying the same environmental niche as manta.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 12 hours ago









          jamesqfjamesqf

          10.4k11937




          10.4k11937





















              0












              $begingroup$

              Giant nudibranch.



              nudibranch
              source



              These are ocean animals. They swim slowly along as I imagine your creature might. They can have a vaguely avian outline as seen here.



              Known nudibranchs of course do not get to the size you want, but maybe they could. The molluscan body plan can scale up. Squids get big.






              share|improve this answer









              $endgroup$

















                0












                $begingroup$

                Giant nudibranch.



                nudibranch
                source



                These are ocean animals. They swim slowly along as I imagine your creature might. They can have a vaguely avian outline as seen here.



                Known nudibranchs of course do not get to the size you want, but maybe they could. The molluscan body plan can scale up. Squids get big.






                share|improve this answer









                $endgroup$















                  0












                  0








                  0





                  $begingroup$

                  Giant nudibranch.



                  nudibranch
                  source



                  These are ocean animals. They swim slowly along as I imagine your creature might. They can have a vaguely avian outline as seen here.



                  Known nudibranchs of course do not get to the size you want, but maybe they could. The molluscan body plan can scale up. Squids get big.






                  share|improve this answer









                  $endgroup$



                  Giant nudibranch.



                  nudibranch
                  source



                  These are ocean animals. They swim slowly along as I imagine your creature might. They can have a vaguely avian outline as seen here.



                  Known nudibranchs of course do not get to the size you want, but maybe they could. The molluscan body plan can scale up. Squids get big.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered 7 hours ago









                  WillkWillk

                  115k27218482




                  115k27218482



























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