PDA

View Full Version : Alien Intelligent Beings - Octopuses



Charles Pegge
05-06-2010, 17:24
Octopuses:

These creatures have 9 brains and 3 hearts but no skeletal structure. Their eyes can discern polarised light and also swivel in the z axis so they can be adjusted to be always in the correct orientation for gravity. Some say they are as intelligent as dogs. They are also known to use tools. Yet their natural lifespan is only between 6 months and five years. Some people have successfully kept them as pets. They have a huge appetite for crabs and shellfish and must be kept under optimum conditions. They also need a rich environment toys to play with.

http://en.wikipedia.org/wiki/Octopus
http://en.wikipedia.org/wiki/Cephalopod_intelligence

Suave Intelligence
http://www.youtube.com/watch?v=T8cf7tPoN5o&feature=related

http://www.youtube.com/watch?v=bBe2KaRuI80&feature=related

My Octopus opening a container to get a crab!!
http://www.youtube.com/watch?v=_umYYoqaGl4&feature=related

in wild

Girl playing with Octopus while freediving
http://www.youtube.com/watch?v=QJz8U8VmMpo&feature=related

Diver wrestles with giant pacific octopus
http://www.youtube.com/watch?v=iSNl50mvDuk&feature=channel

Eating sharks in an aquarium
http://www.youtube.com/watch?v=FFOEZh1Lbbg&feature=related


Charles

Petr Schreiber
05-06-2010, 18:32
Thanks Charles,

they are really smart, and the level of deformation they can perform is shocking. I think the only limit are the jaws (as mentioned in the video) and maybe the eye balls.
The eye rotation is also fascinating - imagine laying on one side of the body, but thanks to corrected eye horizont still able to read open book standing open on the bed :D

From PC graphics stand point, how to represent Octopus body? Maybe set of metaballs, while all of them connected using kind of spring for fully flexible deformation?

Their inteligence is outstanding, I would prefer to not meet octopus under water in a fight for life.


Thanks,
Petr

Charles Pegge
05-06-2010, 19:28
The only rigid parts of an octopus body are its beak and its eye lenses. Even its eyeballs are flexible and it focuses an image onto the retina like a camera by adjustin the lens distance, unlike we vertebrates who alter the shape of the lens itself. I don't think an Octopus would ever requires spectacles.

Octopus arms are mostly autonomous and each have their own brains. To coordinate its arms, an Octopus has to see where they are, and does not have an internal map of limb location as we do.

To represent an Octopus in OpenGL, I think we have to consider a spheroidal vertex array with a range of transforms applied to different zones of the surface vertices. There are no fixed articulations (CSG?). The poor crabs have these and they are easily defeated.

Charles

Petr Schreiber
05-06-2010, 20:24
Not sure, will think about it, quite a challenge.

Those poor crabs ... I was looking at them in the videos, just waiting in glass for terrible death.
I remember one of my strongest impressions from my only visit to England 16 years ago was the "genocide" did by cars on crabs trying to cross the roads near the sea.


Petr

danbaron
05-06-2010, 20:47
[font=courier new][size=8pt]I'm not sure if I remember this correctly, but it bothered me, and stuck in my mind.

If I am correct, then, octopuses are the only other animal known to commit suicide.

They gnaw off their legs.

Dan

Charles Pegge
05-06-2010, 22:03
Unlike us, Octopuses do not aspire to immortality. There are no grandparents and both mother and father octopus seem to be programmed to die once they have performed their parental duties.

Some Octopuses can shed a limb which continues to move about when they are in a tight spot to satisfy a predator while they make their escape. The limb will regrow

Charles

Charles Pegge
09-07-2010, 01:37
Another Clip:

showing the Octopus camouflage capability around a coral reef.

http://www.youtube.com/watch?v=5oExwxkuT_c&NR=1&feature=fvwp



Versus Bird

http://www.youtube.com/watch?v=aH0JNSIrBA4&NR=1

Petr Schreiber
09-07-2010, 19:49
Thanks Charles,

as I watch the videos you post, and learn more and more about Octopuses, it seems to me the water beam attack to the bird could be some kind of entertainment or joke the octopus is making (really). It does not contains any mark of attack using the deadly "jaws" or tentacles.

I am often watching dogs to make some jokes, this could be the joke a la octopus.


Petr

kryton9
10-07-2010, 00:19
What do you guys think of the perfect world cup winner selecting Octopus, perfect picks so far...
http://www.google.com/search?q=soccer+octopus&hl=en&safe=off&prmd=nv&source=univ&tbs=vid:1&tbo=u&ei=KqA3TJn6OoK78gb43fCmBg&sa=X&oi=video_result_group&ct=title&resnum=6&ved=0CDgQqwQwBQ

Charles Pegge
10-07-2010, 10:12
I saw one report that Paul Octopus made the correct prediction 70% of the time. We will have to wait till Wednesday and then leave it to the statisticians to argue the case.

Is there a relationship between team morale and having attractive flags / logos / colors?

Charles

LanceGary
10-07-2010, 11:27
I saw one report that Paul Octopus made the correct prediction 70% of the time. We will have to wait till Wednesday and then leave it to the statisticians to argue the case.

Is there a relationship between team morale and having attractive flags / logos / colors?

Charles


I am sure it does. There is some research showing that teams wearing Red are more likely to win than teams wearing other colours.

Lance

kryton9
12-07-2010, 11:22
http://g.sports.yahoo.com/soccer/world-cup/blog/dirty-tackle/post/Paul-the-Oracle-Octopus-goes-eight-for-eight-is?urn=sow,255211

zak
12-07-2010, 14:37
.