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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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:iconava-lightwing:
Ava-Lightwing Featured By Owner 5 days ago
Amazing creatures!
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:iconabiogenisis:
Abiogenisis Featured By Owner 1 day ago
Danke :)
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:iconsagittarius-a-star:
Sagittarius-A-star Featured By Owner Aug 26, 2014  Student Digital Artist
Awesome creature, I love both the painting and the believable description. :) Dolphin-like predators, only with tentacles and a poison spike- damn, Earth, why couldn't you have included these when you were evolving ocean predators? XD Oh, and beautiful work on the undersea lighting effects, as well!!
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:iconmadman1234855:
madman1234855 Featured By Owner Aug 24, 2014
Nautilus orcas, neat
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:iconabiogenisis:
Abiogenisis Featured By Owner Aug 24, 2014
Nauticas
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:iconlord-lavrahtheen:
Lord-Lavrahtheen Featured By Owner Aug 24, 2014
these are some truely magnificent creatures
I could totaly picture them actually swiming in the ocean and having some guy do a BBC-like documentary on that (and I would absolutely watch it :O)
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:iconrhodalle-sylthezyne:
Rhodalle-Sylthezyne Featured By Owner Aug 23, 2014
what a -beautiful creature!! I'm especially drawn to the eye. Those serrated tentacle mouths are intimidating indeed.
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:iconsack-back:
sack-back Featured By Owner Aug 22, 2014  Hobbyist Traditional Artist
Amazing!
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:iconabiogenisis:
Abiogenisis Featured By Owner Aug 24, 2014
:D
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:iconpoppadopadum:
poppadopadum Featured By Owner Aug 18, 2014
Didn't know it was in birrin nature to protect wildlife.
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