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Hump head (update) by Cibana Hump head (update) by Cibana
A different way of evolution.
Predator that eats everything it can get, maybe more a scavanger. He can also digest rotten meat and bones.
The location of the CNS is totally different. Breakup of the cephalisation during this evolution. The CNS is protected by a hard skull and by the positioning on the back of the animal. The spinal cord bents and proceeds ventral so all internal organs are very well protected by spines and limbs. The limbs form a gristly cage arround the organs which is in most parts flexible. The visual system and the chemosensory system are located on the hump. In that way this creature has an overal view even during feeding because the mouth is seperated on an other head. This "fake head" with teath and mouth is a good distraction for other predators. Excretion and reproduction system are in most parts symetrically arranged above and aside the spinal cord.
The real head with the visual and chemosensory input forms the back of this creature, you can say the head is grown together with the former back so the spinal cord had to bent.

This creature has to be a deuterostome because its excreation systems is located were the blastopore of his proteostome ancestor was, so the former mouth of the ancestor becomes the anus. The new, deuterostome mouth develops at the opposite end of the embryo from the blastopore. The digestive tract develops in the middle and connects the two. The tail (if you rebend this creature) moved infront of the head (brain) and is the mouth.

I thought about the advantage and the disadvantage about this kind of evolution:
advatage:         good protection of organs and head
                         good view and sniffing even during feeding
                         no dirt on eyes, olfactory epithelia near the blowohle (breathing apparat)
                         no possible suffocation during feeding (no evolution of choanae)
disadvantage:  not very flexible skeleton, reduces maybe the total speed as predator (I dont know how fast this creature could be and I still have to think about the hunting strategy it may have
                         it cannot turn his head to look behind -->  it has big eyes instead and the eyes are on a high position, also the back is protected by spines as compensation.
                          the connection between spinal cord and second or skull with mouth has to be at the lower jaw or the oesophagus would have to cross through the curls ( and thats a huge disatvantage becouse then                              the size of what this creature is able to eat would be very limited).
                          in case of a lower jaw and spinal cord combination the biting pressure shoul come from above or it could have a kind of filament construction that make the moth work like a mouse trap.
                          I changed the skull in parts to make it more realistic.

I will keep on thinking on this one and would like to hear what you think about it. Do you think this is a possible creature, for example.

You are not allowed to use this concept or creature without permission.
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:iconeaglehawkaz:
EagleHawkAZ Featured By Owner Jan 27, 2015  Hobbyist General Artist
omg if that came at me I would need a clean pair of pantsLovely Shoujo (Aaaaah Nooo) [V3] 
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:iconcibana:
Cibana Featured By Owner Jan 28, 2015  Hobbyist Digital Artist
Yes, sry ^^, it is far away from being cute I know :).
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:iconeaglehawkaz:
EagleHawkAZ Featured By Owner Feb 10, 2015  Hobbyist General Artist
hahah its cute in its own way Heart bum Llama Emoji-02 (Blush) [V1] 
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:iconpalasferas:
Palasferas Featured By Owner Nov 4, 2014  Hobbyist General Artist
I really like the amount of thought you put into this. 
I wonder though... If it's head is it's tail, shouldn't the legs be the other way around?
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:iconcibana:
Cibana Featured By Owner Edited Nov 4, 2014  Hobbyist Digital Artist
Yes the head with the mouth can bee seen as tail because I called the second skull with the brain on its back its head.
You can say the hindlegs are the frontlegs if you rebend this creature in the way that the spinal cord lays dorsal and the head with the brain is the real head. In that way the orientation of the hind/frontlegs would even stay the same.
The frontlegs of the creature are then the hindlegs. Ofc then the orientation of the frontlegs would be different. They would point upwards, but that would be not so good for the creature ^^. But if you go far enough back into the development it can make sense. The legs just had to rotate in their position.

 I think I have to make an ancestor in order to show in what state this evolution started. I have a fish in mind. The fins then evolved to legs in that way they would for a landliving creature.

But thank you that you let me think about it ^^. I think the discription is a bit confusing :).
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:iconjenny42:
Jenny42 Featured By Owner Nov 1, 2014  Hobbyist General Artist
Wow!  That is an impressive amount of thought and detail in that design!  I am suitably impressed!!Clap Clap Clap Clap Clap Love 
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:iconcibana:
Cibana Featured By Owner Nov 2, 2014  Hobbyist Digital Artist
Thank you Jenny, I always try to think what is possible and what not in evolution. I try to combine my studies with my hobby ^^. Its quite interesting what problems you discover if you change something inside the known body plans.
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:iconfuturum-undam:
Futurum-Undam Featured By Owner Nov 1, 2014  Professional
Wow!

 This is very impressive in it's concept and design.  I am taking my time to read over the entirety of this, I am fascinated by such detail; my favorite aspect of great design.
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:iconcibana:
Cibana Featured By Owner Nov 2, 2014  Hobbyist Digital Artist
Thank you, I am very interested in these subjects and its quite fun to think about changes in the evolution and why are we build in that way and what maybe also possible.
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