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Member (Idle past 1701 days) Posts: 4854 From: Dark Side of the Moon Joined: |
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Author | Topic: What type of biological life will more than likely be found on other planets? | |||||||||||||||||||||||||||||||||||
Dogmafood Member (Idle past 187 days) Posts: 1814 From: Ontario Canada Joined: |
Which insects or animals don't have brains?
But look out the window jar. Animal life, replete with brains, is common.
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jar Member Posts: 33120 From: Texas!! Joined: Member Rating: 4.7 |
I look out the window and see plants and trees and worms and some slugs and insects (that are not intelligent by any measure I know of) and the occasional bird or chameleon. By far the things that can be said to have intelligence are in the minority.
Anyone so limited that they can only spell a word one way is severely handicapped!
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Stile Member Posts: 4017 From: Ontario, Canada Joined: Member Rating: 4.7
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Yeah, that would be cool.
It certainly looks impossible today. And maybe it is. I like to hope it isn't, though.
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RAZD Member (Idle past 155 days) Posts: 20714 From: the other end of the sidewalk Joined: |
Hi jar
There is no "better" -- both work in different ways in different ecologies. The question to me is not which is better, but whether or not intelligence will be an emergent property of evolution under sufficiently appropriate ecological conditions. My belief is that it is such a property, that if conditions are suitable on another planet that it will arise. Enjoy. by our ability to understand Rebel American Zen Deist ... to learn ... to think ... to live ... to laugh ... to share. • • • Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click) • • •
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jar Member Posts: 33120 From: Texas!! Joined: Member Rating: 4.7 |
You're right, I should not have used the term "better".
Anyone so limited that they can only spell a word one way is severely handicapped!
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caffeine Member Posts: 1799 From: Prague, Czech Republic Joined: |
Oddly enough, I'm actually partially coming round to jar's point, once he started explaining it and stopped writing posts that were only two lines long. The question isn't whether intelligence as such will arise. The question is whether intelligence that gives rise to something we would recognise as a technological civilisation will arise. I think that intelligence in the form of problem-solving abilities and social cunning might well be an expected outcome of animal-like life; but it might require a very contingent and specific set of circumstances to lead to an organism which builds things similar to us. The universe is very, very big, though - so even the staggeringly unlikely may have happened many times.
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Dogmafood Member (Idle past 187 days) Posts: 1814 From: Ontario Canada Joined: |
Not only very big but very nearly homogeneous. Is it likely for there to be anything that is truly unique in the universe?
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New Cat's Eye Inactive Member |
I agree. If we find aliens that are on par with ourselves, then they're going to have come from an environment similiar to ours, and then, I think they're going to look a fair amount like us as well, i.e. symmetric, mobile, dexterous, intelligent... I don't think science fiction like Star Wars and Star Trek are that far off with there being several types of humanoids with varying degrees of differences from "human".
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Dr Jack Member (Idle past 855 days) Posts: 3507 From: Leicester, England Joined: |
Of the 35 phyla listed by Wikipedia (other sources will give slightly varying numbers), 22 have no brain, 2 have brains in only some species, 2 I wasn't sure about and just nine have brains in all members. If you take a more generous view of what a brain is and include any cephalisation as a "brain", then about half the 'no brain' phyla switch sides. So, you see, animals without brains are really not that rare.
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Dogmafood Member (Idle past 187 days) Posts: 1814 From: Ontario Canada Joined: |
Yes. I regretted the question as soon as I submitted it. Still, would you describe creatures with brains to be uncommon in the world? Oni's definition of intelligence is an arbitrary point somewhere near the top of the scale, possessed by only one species. If all life has some common ancestor then the seeds of that intelligence should be possessed by all life.
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caffeine Member Posts: 1799 From: Prague, Czech Republic Joined: |
You mean like the seeds of flight, or the seeds of vitamin c synthesis, or the seeds of coprophagy?
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Dr Jack Member (Idle past 855 days) Posts: 3507 From: Leicester, England Joined: |
Nope. Plus, it's independently evolved multiple times so I'd argue we'd expect to see brains in all animal-like life.
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Dogmafood Member (Idle past 187 days) Posts: 1814 From: Ontario Canada Joined: |
I guess so, which means it doesn't say anything about the probability of it's development only the possibility. If the elemental building block of intelligence is something like the ability to respond to your environment then it may be much more necessary to life than other elements. Where does intelligence begin?
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