which cryptid could exist?

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IMO I think none of them are real until someone catches one, kills one or finds a body. I'm not talking about and undiscovered species of insect or a new fish brought up from 7 miles down in one of the deep sea trenches. I mean BIG animals like the Loch Ness monster or Big Foot, Yeti etc. If so many people have seen them where are they? It's all BS until someone can produce one and I don't think anyone will.
 
I would love to see a living pterosaur, mosasaur, plesiosaur or a pliosaur to be found.

I would say all cryptids that belong to macrofauna will not remain undiscovered until now. Being big means they need to hunt for more food specially if they are warm-blooded. Them being very rare means a very small living population will result in inbreeding and wipe them out altogether in a span of a few generations. Deep seas? A large living animal would likely not survive that amount of pressure much more on the amount of food it can find.
 
Naos1984 said:
I would love to see a living pterosaur, mosasaur, plesiosaur or a pliosaur to be found.

I would say all cryptids that belong to macrofauna will not remain undiscovered until now. Being big means they need to hunt for more food specially if they are warm-blooded. Them being very rare means a very small living population will result in inbreeding and wipe them out altogether in a span of a few generations. Deep seas? A large living animal would likely not survive that amount of pressure much more on the amount of food it can find.
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To be fair, some deep sea giants are very rare sighted by the humans, even commercial whale hunters.
 
Million percent there are large un known creatures in our seas. I remember several years ago I was watching a program, where a submarine was down deep and picked up a large object on there sonar. They followed the object for several hours until it dove down out of reach of there sonar. No whale could survive at those depths for that period of time.


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follen said:
Million percent there are large un known creatures in our seas. I remember several years ago I was watching a program, where a submarine was down deep and picked up a large object on there sonar. They followed the object for several hours until it dove down out of reach of there sonar. No whale could survive at those depths for that period of time.


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Source? A sperm whale or a giant squid? Either way both are identified. Also, are we talking of anything deeper than 3kms? That's the farthest sperm whales can dive.

MN_Rebel said:
To be fair, some deep sea giants are very rare sighted by the humans, even commercial whale hunters.
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If there is anything big out there, it can only be a mollusk which we all know now as the giant squid. The extreme pressure and cold temperature will surely kill anything of significant size. The rigid structures like bones or exoskeletons will surely be crushed. Limitations brought on by physics and the evolutionary history of animals has taught us that such creatures are very unlikely.
 
That is wrong. No shell will be crushed. If the inside pressure is the same as the outside pressure. The temperature down there is not that cold. Its mostly 4°C. Infact many organisms grow to immense sizes down there for unknown reasons.
 
Akuma said:
That is wrong. No shell will be crushed. If the inside pressure is the same as the outside pressure. The temperature down there is not that cold. Its mostly 4°C. Infact many organisms grow to immense sizes down there for unknown reasons.
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If the shell is enclosed and the only outward pressure is from the tissue of the organism then weak points in the shell could in theory cause a collapse. Pressure would only be equal inside and out if the water is surrounding the shell on both sides, such as a clam. But in the case of say a lobster the exoskeleton is supported by the soft tissue of the crustacean. Something like the latter would need a way to maintain internal pressure and regulate it as it moves.

What organisms grow to immense sizes at depths like that? I'm not too familiar with them.
 
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