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01-28-23, 03:25 PM | #2551 | |
Dipped Squirrel Operative
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Almost right, but it is not an octopus but another species.
There is a difference between an octopus and a squid. Quote:
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>^..^<*)))>{ All generalizations are wrong. |
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01-28-23, 03:32 PM | #2552 |
Starte das Auto
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Squiddly Diddly
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01-28-23, 03:42 PM | #2553 |
Dipped Squirrel Operative
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Thinking of certain whales, using sonar to find what exactly? ...
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>^..^<*)))>{ All generalizations are wrong. |
01-28-23, 03:50 PM | #2554 |
Gefallen Engel U-666
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colossal squid (Mesonychoteuthis hamiltoni)
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"Only two things are infinite; The Universe and human squirrelyness; and I'm not too sure about the Universe" |
01-28-23, 03:54 PM | #2555 |
Dipped Squirrel Operative
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^ Almost but no, it is more mundane and not limitd to the antarctic, though it looks a bit like it
Last hint – what do they hunt: The plump-looking bow of these whales is being squeezed to a more hydrodynamic form by water pressure, when they dive really deep. Their prey is usually to be found there ..
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01-28-23, 04:02 PM | #2556 |
Gefallen Engel U-666
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Humboldt squid (Dosidicus gigas)?
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"Only two things are infinite; The Universe and human squirrelyness; and I'm not too sure about the Universe" |
01-28-23, 04:06 PM | #2557 |
Dipped Squirrel Operative
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Still no
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01-28-23, 04:20 PM | #2558 | |
Fleet Admiral
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Giant squid (Architeuthis dux)
Quote:
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My little lovely female cat |
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01-28-23, 04:42 PM | #2559 |
Dipped Squirrel Operative
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Ok, but .. YES! This is the beak of Architheutis dux: "The parrot-like beak of the giant squid, strong enough to bite through steel cable, is used to cut prey into small pieces. Unlike the octopus, whose arms have simple suckers, the arms and tentacles of the giant squid are equipped with hooks and sharp sucker rings." The only hard part that is left of the elaborate sculpted ammonites and belemnites, being reduced over millions of years during evolution. Some other depictions: Some time before it was thought that the architheutis was hunting sperm whales, but it was found it is the other way round. Those squids are hunters, but the sperm whale specialised on hunting them. "Before whales evolved, it could be that giant squids lived near the ocean surface. After whales evolved and discovered that squids are tasty, the giant squids might have started living in deeper water, to escape the whale predators. Some whales might have started diving more deeply (and developed specialized physiology allowing them to hold their breath up to 90 minutes and to resist the great pressure at depth) so they could feast on the squid, so the squid might have responded by living deeper still. Cycles like this, between predators and prey, are examples of co-evolution." Sperm whales have typical wounds from the sharp hooks of the tentacles of those deep sea sqids and their beaks, but usually the whale is the winner. Architheutis is seldomly seen alive, when it reaches the upper layers of seawater it is usually dead, or dying (due to the missing pressure of the deep seas). Recent studies show that sperm whales and giant squids like Architheutis are being confused by underwater sounds emitted by submarines and subsea oil operations, whence the beaching of whales and increased sightings of dead squids at the oceans' surfaces. Jim sure showed the right direction, but the octopus (sometimes called "Kraken") has eight arms without hooks or claws, while the sqids or kalmars have ten (being decapoda rather than octopoda) – two of them are longer and have special tasks of catching prey and drawing ot to the other arms, and the beak. OT, Physeter macrocephalus ("sperm whale") has its head filled with a special substance to amplify and record a 3-dimensional picture of its surroundings by emitting a 200 db clicking sound that is being echoed and processed. It uses active sonar to hunt those giant squids. So, over to Marcus
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>^..^<*)))>{ All generalizations are wrong. Last edited by Catfish; 01-28-23 at 05:24 PM. |
01-28-23, 04:58 PM | #2560 |
Fleet Admiral
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He sounds like a great guy this Marcus
What is this Markus
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My little lovely female cat |
01-28-23, 05:32 PM | #2561 |
Gefallen Engel U-666
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Early german auto?
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"Only two things are infinite; The Universe and human squirrelyness; and I'm not too sure about the Universe" |
01-28-23, 05:41 PM | #2562 |
Fleet Admiral
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My little lovely female cat |
01-28-23, 06:05 PM | #2563 |
Starte das Auto
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1886 Benz Patent Motorwagen
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01-28-23, 06:14 PM | #2564 | |
Fleet Admiral
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Correct
Quote:
Over to you my friend Markus
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My little lovely female cat |
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01-29-23, 05:15 AM | #2565 |
Starte das Auto
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Good one, Markus - I got it because I recognised the steering mechanism
So what is this? I can reveal more of it for clues later
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