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August 9
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Irridalli by Abiogenisis Irridalli by Abiogenisis

The Irridalli are a successful group of medium-sized predators stalking the upper levels of Chriirah’s tropical oceans. Like many mobile quadrilaterians, evolution has optimised their four-sided body plan into a sleek, secondarily bilaterally symmetrical shape able to move swiftly and efficiently through the ocean.

Possessing some social intelligence, Irridalli travel in loose pods to locate swarms of suitable food, at which time they separate and attempt to drive the prey nearer the surface, thus rendering them easier to capture. Despite this initial co-operation, the actual hunt itself is performed independently of the other pod members, cooperation only resuming when prey needs to be driven towards the surface once again.

While Irridalli are quite fast, many prey species are considerably faster and swimming speed is not their primary weapon: Moving in behind prey, the large eyes fix on a target and when in range two tentacles launch outwards as an elongated and lethally barbed lower jaw attempts to impale it. If the strike is successful, the tentacles rapidly coil around the doomed creature and draw it towards the mouth.

Like most apex predators, the Irridalli suffered major population depletion in the period leading up to, and during, the fall of birrin civilisation. As the birrin recovered, so too Irridalli populations increased in parts of their former ranges as prey species returned. The loss of genetic diversity however has resulted in higher than expected parasite loads in some pods.

Once hunted by the birrin as food, they are now rarely eaten both because they are widely protected, and are so infused with accumulated industrial poisons they are mildly toxic to ingest.

 

 

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:iconhelixdude:
Helixdude Featured By Owner 5 days ago
So apparently Birrin civilisation has collapsed at least once in the past, tell me more about that.
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:iconworldbuildersinc:
WorldBuildersInc Featured By Owner Nov 4, 2014  New member Student Traditional Artist
Your work is so cool! I'm an aspiring science-fiction author/artist, and I really look up to these creations to inspire my own. I have decided to embark on a world-build expedition more thorough than I have before. No offense, but a watch would be appreciated!
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:iconsynaesthetic1:
Synaesthetic1 Featured By Owner Oct 27, 2014
Dunno if I have said this before but I have thoroughly enjoyed your concept of a post-fall alien civilisation, and the amount of thought and breadth of how you fill out this world is quite brilliant. arguably gifted. Video game, movie, novel. Adult picture book (Dinotopia meets Brom's work)

go for it. I know, sure, lots of people go into that level of detail. but in this way, nonanthropomorphically plus post-apocalyptic plus develop civilisation? yeah, I have only seen that from you.

GO DO.
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:iconabiogenisis:
Abiogenisis Featured By Owner Oct 29, 2014
Yeah I want to avoid 'Fallout' type worlds, going for what I think might REALLY happen after a fall.
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:iconthemoon-sfantasy:
theMoon-sFantasy Featured By Owner Oct 25, 2014  Student General Artist
I love the creatures that you create! They all so majestic and mystical.
Also the cure in the descriptions is fantastic, it's like having one of them in front of me everytime!
:heart:

PS: "medium-sized"... so like sharks? 
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:iconabiogenisis:
Abiogenisis Featured By Owner Oct 29, 2014
Hmm like a humboldt squid.
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:iconthemoon-sfantasy:
theMoon-sFantasy Featured By Owner Nov 4, 2014  Student General Artist
oooh intersting! Thank you *3*
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:iconwardude69:
wardude69 Featured By Owner Oct 11, 2014
epic design on the mouth.
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:iconabiogenisis:
Abiogenisis Featured By Owner Oct 12, 2014
Thanks :)
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:iconwardude69:
wardude69 Featured By Owner Oct 12, 2014
mandible internal jaw combo seems difficult.
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