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Conference noted::sf

Title:Arcana Caelestia
Notice:Directory listings are in topic 2
Moderator:NETRIX::thomas
Created:Thu Dec 08 1983
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1300
Total number of notes:18728

421.0. "Xenobiology" by PROSE::WAJENBERG () Wed Dec 03 1986 10:55

This note is about xenobiology, that division of biology that studies 
extraterrestrial life.  So far, of course, this is an entirely conjectural 
science, if you want to call it a science at all.  But it is one of 
considerable interest to science fiction.  I thought we could use this note to 
discuss the plausibility or implausibility of various SF aliens, and discuss 
their various literary functions.

I'll start off by noting that there is a sliding scale of bizarreness in 
aliens.

At one end of the scale, we have aliens almost or entirely indistinguishable 
from humans.  These are popular in the visual media for obvious reasons of 
convenience in casting.  They include Star Trek's Vulcans and many other 
races who evolved in parallel with southern California, Dr. Who's Gallefrians 
and scores of other BBC-speaking humanoids, Edgar Rice Burroughs's Martians 
of any color besides green, Ursula LeGuin's people of the Hainish Ecumene (who 
at least have the decency to be blood relatives of ours), and if my memory 
serves me correctly the humanoid natives of Marion Zimmer Bradley's Darkover.

The next notch on the scale is occupied by aliens like those of Poul Anderson 
and Larry Niven. Most of these critters are clearly not human, but also
clearly animals designed on biological principles familiar on Earth.  Thus
they are often described in terms of Earthly animals.  Adzel of Woden is a
crocodilian centaur (a centaur in turn being a compound of Earthly animals). 
Chee Lan of Cynthia is a blend of squirrel, cat, raccoon, and monkey.  Kzinti 
are cat-people; puppeteers are "headless three-legged centaurs with Cecil-
the-Seasick-Sea-Serpent puppets on their hands" (obviously a rough 
description).

The puppeteers make a good transition to the next level of wierdness, used by 
David Brin and James White (in his Sector General stories).  Here the alien 
architecture gets rather more whimsical.  You don't always get a clear picture 
of what the things look like, just impressions of too many limbs and eyes.  Or 
they look like giant bugs or animated vegetables.  They fade off into 
fantastic beings made of energy or liquid helium or animated neutronium.

Finally, we have the mind-shatteringly alien ETs of people like H. P. 
Lovecraft.  (Come to think of it, I'm not sure there IS anyone *like* 
Lovecraft.)  These critters are hardly ever described; they're just hinted at. 
If you're really lucky, you discover they look like toads.  (Lovecraft seems 
to have hated toads.)  The majority of them are so hideous that the mere sight 
of them causes permanent psychological damage to human observers.  Perhaps 
these are related to the off-stage aliens that can't even be hinted at in 
things like Clarke's "2001" and Sagan's "Contact."

I find the middle two categories the most plausible, and I lean heavily toward 
the more conservative Niven/Anderson school of alien design.  The humanoids 
are obviously just dramatic conveniences.  The unimaginable ones are just 
bogies.  Which brings up the dramatic function of aliens.

Bogies are a legitimate dramatic function, but the only reason for making them 
extraterrestrial is that we've run low on terrestrial ones.  With the 
occasional exception of germs or sharks, people can't really work up much 
dread of Earthly animals any more.  True, we can home-grow our monsters with 
radiation or genetic engineering, and there are plenty of stories about them.  
But a monster from outer space has an added tang of msytery to it.  So it is 
right and proper there should be bogey-aliens (like The Aliens of the movie), 
but it isn't a major function.  They don't even have to be intelligent.

The best general-purpose function of aliens, I think, is to provide outside 
standards and comparisons on humans.  And they have certainly been used that 
way.

The highly humanoid aliens are scientifically implausible, but they allow for
comparisons that are strictly mental, without confusing the issue with bodily
comparisons.  If the humans get invaded by, condescended to, or commented on
by humanoid aliens, it illustrates to the reader -- usually an American reader
-- what it is like for low-tech humans to be visited by conquistadors,
missionaries, and anthropologists.  In general, the humanoid aliens can play
the part of dominant or at least equal foreigners to people who otherwise
don't have much chance of experiencing that kind of contact. 

They can also be pseudo-people, a dramatic function often exercised by robots, 
computers, and androids.  Pseudo-people go back a lot further than SF.  Elves, 
vampires, demons, ghosts, and witches have all been displayed in both fiction 
and legend as things that look like people but are really monsters or at best 
are empty and soulless and break it even if they don't eat it.

The non-humanoids can provide all the functions of the humanoids, but with the 
enhancements of greater scientific plausibility and greater scope for 
invention and wonder.  They have the disadvantage of blunting the comparison
between humans and aliens.  How comparable ARE a human and a crocodilian
centauroid like Adzel?  Well, really just about as comparable as a human and a
Vulcan, but the different shape is a distraction.  On the other hand, the
different shape is a continual reminder not to judge by appearances. 
(Anderson's Adzel is a gentle and scholarly soul once you get over the initial
shock.) 

The indescribable aliens are a cop-out, I think.  They make good bogies, but a 
better bogey would be one WITH a description, like the ones in "Aliens."  You 
CAN use the sheer mystery of them to provoke wonder or dread, but you have to 
be careful and you can't do it very often.

That ought to be more than enough for a kick-off.  Let's hear about your 
favorite or least favorite aliens.

Earl Wajenberg
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421.1SOLARISEDEN::KLAESThe right computer finally came along.Wed Dec 03 1986 12:4119
    	I think the most unique alien ever written in SF was Stanislaw
    Lem's SOLARIS, the ocean/being which encompassed the planet of the
    same name.                                   
    
    	Solaris was so unusual to the scientists in that book, it took
    years for them to realize that Solaris was a living being, then
    many more years to realize it was intelligent.  The only other things
    known about Solaris was that it was controlling the rate and distance
    of the planet's orbit around its sun, and that was trying to
    communicate/understand with the humans it encountered in two ways:
    By making images from the human minds, both as separate entities
    on its own massive body, and from dreams as living beings the
    scientists once knew.  All else was speculation.
    
    	Solaris also definetely qualified as an alien with which to
    reflect humans and our society upon.
    
    	Larry
    
421.2Chalker - exobiologist at largeOPUS::LUBARTWed Dec 03 1986 17:5112
    For originality, Id say Jack Chalker's Warden Diamond series is
    up there.   Those little micro-orgs, and their effect on humans
    is fascinating, and described in believable detail too.  The variety
    of life on the four worlds is well thought out too.  And the uncovering
    of the last alien life form was spectacular.
    
    For a variety of aliens who fit the 'mixture of Earth type animals'
    the Well of Souls series has no equal.  There's just too many to
    rattle off.  Anybody care to try (without the book of course)
    
    /Dan
    
421.3Titan gets my vote for most uniqueOPUS::LUBARTWed Dec 03 1986 17:535
    re .1
    
    	I never read Solaris (yet), but your description reminds me
    of John Varley's Titan.  Now there is a unique alien.
    /Dan
421.4RE 421.3EDEN::KLAESThe right computer finally came along.Wed Dec 03 1986 18:146
    	SOLARIS was published in 1960, so if anything, Varley may have
    gotten his idea from Lem, not the other way around (note that I
    am NOT saying he definetely DID).
    
    	Larry
    
421.5Differences of differenceROCK::REDFORDOn a pure caffeine highWed Dec 03 1986 18:3620
re: .1

The point of Solaris was that the ocean-being was beyond human 
comprehension.   It was obviously enormously powerful and enormously 
intelligent, but the scientists in the story never did succeed in 
communicating with it, even after centuries of trying.  This is 
actually another good function of aliens: to show that there might be 
sentient beings that are so different from us that no contact is possible.
They could differ not just in physical form, but in mental form.  Our 
world-views just don't have any intersections.

Most writers don't go to this extreme, of course, because you can't 
write much of a story around it.  They stop with partial overlap of 
human and alien world-views, and then explore contrasts.  This is a 
particular specialty of C. J. Cherryh's.  She is constantly dumping 
some poor beknighted human in the midst of a culture with 
fundamentally different values, and then letting him (and us) figure 
it out.  

/jlr
421.6Film version of SolarisNATASH::MEDEIROSGodThu Dec 04 1986 10:1914
    
    Re: Solaris
    
        FYI, there was also a film produced which was based on
    the book Solaris. I saw it about ten years ago - it's in
    Russian with English subtitles. The film was very confusing,
    because the nature of Solaris wasn't revealed until the very
    end, and even then it wasn't clear that there was one being
    causing all the trouble.  Most of the film showed the planet's
    visiting scientists having visions and hallucinations about
    people that they had known, without knowing the origin of
    the visions.
    
                              
421.7RE 421.6EDEN::KLAESLooking for nuclear wessels.Thu Dec 04 1986 10:2411
    	In the novel, Solaris took memories of certain people from the
    minds of the scientists living/working at the Earth base located
    on its planet while they slept.  These memories were detailed
    individuals almost down to the molecular level.  
    
    	Why Solaris did this, it is never clearly found out, but the
    theory was that it was an attempt at communication/understanding
    by Solaris.
                                                     
    	Larry
    
421.8OceanographyPROSE::WAJENBERGThu Dec 04 1986 11:086
    Did Lem ever discuss how Solaris guided the orbit of its planet?
    For example, did this animated ocean regulate its own tides and
    thus play tricks with angular momentum?  Or was it just global-
    scale telekinesis?
    
    Earl Wajenberg
421.9RE 421.8EDEN::KLAESLooking for nuclear wessels.Thu Dec 04 1986 11:246
    	I think it was an incredible telekinetic power - Solaris and
    the planet were almost one, anyway - but like most aspects about
    Solaris, it was just a theory.
    
    	Larry
    
421.10solaris = somnaCACHE::MARSHALLhunting the snarkThu Dec 04 1986 16:4010
    re the film:
    
    It was extremely boring as well, I had a very hard time keeping
    my eyes open during it, and only succeeded for about half the movie.
                                                   
                  /
                 (  ___
                  ) ///
                 /
    
421.11INK::KALLISSupport Hallowe'enTue Dec 09 1986 15:1836
    Re Solaris, et al.:
    
    I recall reading a short story in the mid 1950s (probably by Leinster,
    but I could be in error here) about a planetary intelligence formed
    out of what started out as the hydrosphere.  Can't recall the title,
    but it apparently antedated the ones currently being discussed.
    
    Re .0:
    
    The "mixed bag" aliens of the James White school really were brought
    to light in the Doc Smith Lensman stories.  They ranged from the
    humanoid types like the Chickladorians all the way to the
    quasi-fourth-dimensional [?] Palanians.  These are more credible,
    because different environments breed different needs.
    
    With respect to the Lovecraftian critters, those are borderland
    sf/fantasy anyway.  It's not so much that they are boogies as that
    they are so _alien_ that points of contact are difficult to maintain
    (what does a Lovecraftian "god" care about human problems?  It acts
    in its own [incomprehensible] interests).
    
    Two more worth mentioning:
    
    The protean ones -- like the BEM in Campbell's "Who Goes There?"
    Shape-changing can be a good survival tool in certain circumstances,
    and add intelligence ...  
    
    The symbiotic ones -- like the Hunter in Hal Clement's _Needle_.
    Don't know how they'd get the intelligence, but they're an interesting
    concept. ...
    
    Oh, and yes --  There's the "nebular cloud" type like Fred Hoyle's
    Black Cloud.
    
    Steve Kallis, Jr.
    
421.12StarchildCACHE::MARSHALLhunting the snarkTue Dec 09 1986 17:2811
    _The_Starchild_Trilogy_ by Pohl & Williamson was a veritable catalog
    of strange creatures. Most were air breathers living out in the
    Oort Cloud. Some had rocket propulsion, some had inertialess drives.
    
    But the strangest was the plasma life form, ie intelligent stars.
                                                   
                  /
                 (  ___
                  ) ///
                 /
    
421.13"Star Maker"ROCK::REDFORDOn a pure caffeine highTue Dec 09 1986 17:5619
"Star Maker" by Olaf Stapledon also had intelligent stars, and it was 
written in the thirties.  It takes the planetary intelligences a long 
time to realize what they were orbiting, because the time scales 
were so different.  Since a star's lifetime is roughly ten billion years,
a second to it would be about five years to us.

Stapledon even had intelligent galaxies, but these never evolved very far.
Their time scales were so long that the universe started winding down before
they achieved sentience.

By the end of the book, pretty much the entire universe is a single 
sentient organism.  Heat-death is approaching, though, so it devotes 
all its energies to meeting the Star Maker.  The final vision is of a 
sequence of universes, growing steadily grander and more complex, until
ones are reached where our universe would be just an atom.  Only then 
does the Star Maker merge with his creations.  An old book, but
unsurpassed in sense of the cosmic.

/jlr
421.14Hive MindsPROSE::WAJENBERGWed Dec 10 1986 09:1435
    "Star Maker" is really a cosmic history book more than a novel.
     It is narrated in the first person, but the identity of "I" keeps
    changing as the originally human narrator gets absorbed into ever-
    more-inclusive super-minds.  Not great drama, but an almost chemically
    pure example of science fiction as a "literature of ideas."
    
    "Star Maker" is also a storehouse (or maybe the origin) for a great
    many SF ideas.  One of them is the hive-mind.  Stapledon describes
    several versions of this, culminating in the cosmic awareness. 
    But much earlier we see intelligences whose bodies are flocks of
    small bird-like creatures, linked by organic radio.
    
    This theme is used by Clarke, on a cosmic scale in "Childhood's
    End," and on a merely galactic scale in his "Rescue Mission," in
    which a ship from the Galactic Federation comes zipping into the
    solar system just before the Sun goes nova, looking for some remnants
    of the intelligent species they just now realized was living here.
    The Federation ship has a multi-species crew and one of the species
    is the race-mind Palador; all Paladorians are part of the same
    individual and two units of it are on this ship.  This time the
    connecting medium is telepathy, since radio would hardly serve to 
    link those two up with the main population light-years distant.
    
    James Blish pictures most of the galaxy as inhabited by race-minds
    in a novelette, the title of which escapes me.  James White has
    an occasional hive-mind in a walk-on (swarm-on?) roll in his "Sector
    General" stories.  In "Serpent's Reach," C. J. Cherryh describes
    an intelligent but very alien species that live like Terran hive
    insects.  (Rather unimaginatively and implausibly, they also look
    like Terran hive insects, only horse-sized.)  They are linked
    pheromonally and one is never quite sure if one is dealing with
    a hive-mind or just a very strange alien social psychology, or if
    there is a difference between those two.
    
    Earl Wajenberg
421.15TaxonomyPROSE::WAJENBERGMon Feb 09 1987 11:1019
    In the "Sector General" stories of James White, the people use a
    cataloging system to describe the wild variety of aliens.  Every
    creature gets a four-letter code, which is supposed to describe
    it in some detail.  (White only describes the significance of the
    first letter in detail.)  For instance, humans and very humanoid
    aliens are classification DBDG, while insectile creatures may be
    classed GKLO or some such.
    
    In the "Lensman" series by E. E. Smith, races were sometimes rated
    (by Earthmen) on their degree of humanoidy.  The scale appeared
    to run from zero to one.  A highly humanoid race was described as
    "human to nine decimal places," i.e. 0.999999999 on the scale. 
    At some known point on the scale, alien races became humanoid enough
    to interbreed with Earth humans.
    
    Anyone know of any other taxonomies for aliens?  Does anyone think
    such systems at all plausible or likely to be useful?
    
    Earl Wajenberg
421.16Dont think it would be to usefulLANDO::LUBARTMon Feb 09 1987 16:459
    I dont think it would work too well.
    
    Taxonomy works because all life on this planet is assumed to descend
    from common ancestors.  Aliens would be on a whole new tree, and
    the best you could hope for is functional convergence, for I think
    the odds against genetic compatability would be larger than Issac
    Asimov's vocabulary. :^)
    
    /Dan
421.17Evolution is Desirable but not NecessaryPROSE::WAJENBERGTue Feb 10 1987 09:4727
    Modern taxonomy depends heavily on evolutionary descent, but there
    was an elaborate and, on the whole, successful science of taxonomy
    before Darwin.
    
    For a start, I could easily imagine that life everywhere falls into
    a few basic metabolic groups, e.g.:
    
    	Carbon-polymer forms
    		Oxygen-breathing, water-based
    			Left-handed amines, Left-handed sugars
    			Left-handed amines, Right-handed sugars
    			Right-handed amines, Left-handed sugars
    			Right-handed amines, Right-handed sugars
    		Oxygen-breathing, ammonia-based
    			[repeat amine/sugar list]
    		Hydrogen-breathing, water-based
    			[repeat amine/sugar list]
    		Hydrogen-breathing, ammonia-based
    			[repeat amine/sugar list]
    
    And then there might be similar schemes for, say, creatures based
    on the action of liquid helium in ultra-cold environments.
    
    A taxonomy could work as long as the objects in it fall into fairly
    natural categories of some kind.
    
    Earl Wajenberg
421.19Seems to random to meLANDO::LUBARTTue Feb 10 1987 14:5119
    Your system implies that their is more similarity between
    two races with RHS/RHA then between one of them and a third
    species with RHS/LHA.  I dont know that I agree.  I believe that
    it is most likely that every single world (or other ecological 
    closed system) would have only one form of the iterations you
    mentioned, and that the choice would most likely be random.
    
    Therefore, why group worlds together on the basis of this random
    event?  I suppose it does imply more chance of genetic compatibility,
    but would warmblooded, milk producing bipeds be more removed from
    us because of different sugar and amine orientation than thirty-foot
    long slugs with cilia where its stalks should be, and our amine,sugar
    orientation?  
    
    I think once you open the classification to new evolutionary lines,
    you ought to start a new tree for each, and horizontal lines to
    denote parallel evolution perhaps.  
    
    /Dan
421.20Xenobiology and AstropoliticsPROSE::WAJENBERGTue Feb 10 1987 16:2324
    I chose biochemical features because:
    
    1) There are fewer possibilities than with, say, anatomy, so a coherent
       classification actually has some chance of developing.
    
    2) It actually is significant for interactions between races.
    
    Regarding (1), if there are only a few well-defined possibilities
    for a design, then it should always be possible to make up a taxonomic
    system based on that design.  If the few, well-defined features
    imply a wide variety of other features, the taxonomy starts becoming
    useful.  For instance, I think it likely that the bulk of intelligent
    races will be omnivores, with minorities of carnivores and herbivores.
    The carnivores and herbivores will probably have strong social and
    psychological tendencies related to their ecology.  So knowing a
    race's place in the food chain would be very useful.
    
    Regarding (2), creatures with the same handedness of sugars and
    amines WILL have more in common with us than creatures that differ.
    Not in anatomy or psychology, no.  But they are likelier to be able
    to colonize the same worlds as us, be able to eat the same foods
    as us, possibly catch the same diseases as us.
    
    Earl Wajenberg
421.21ERASER::KALLISHallowe'en should be legal holidayMon Feb 23 1987 11:2413
    Re Doc Smoth's _Lensman_ aliens:
    
    The actual catagorization was alphabetic, but was 4-place only for
    gross appearance (in _Children of the Lens_, Christopher Kinnison
    got an ultra-high burst of thought from an expiring Plooran and
    was able to reconstruct it to four places: RTSL.  As I recall, that
    was the autumn form of a Plooran).
    
    The "decimal places" was techno-slang, chiefly used by Kimball Kinnison
    and cohorts, as in "That checks out to a dozen decimal places."
    
    Steve Kallis, Jr.
    
421.22Evolution and AggressionPROSE::WAJENBERGTue Mar 31 1987 12:1536
Re 26.19

K. Sherman, the author of 26.19, dislikes the movie "ET" on the basis that
"you don't get to rise to intelligence -- let alone high tech -- unless as
 part of your evolutionary process, you become the meanest mother on the
 planet. Smiling shmooes would have been all gobbled-up by a meaner competitor
 long before technology developed."

While I, too, think "ET" was over-hyped and had some flaws, I don't think poor 
evolutionary theory was one of them.  For a start, the movie does not tell us 
if ET's quiet and retiring nature is the result of his species's instincts or 
their culture, or even whether it is typical of them, or even if it is typical 
of ET when he is not marooned on a planetful of barbarians.

But I am more concerned with the evolutionary theory implied.  I don't think 
that being the "meanest mother on the planet" is a necessary prerequsite for
evolving intelligence and hi-tech.  First of all, I don't think humans are the 
"meanest" species on Earth, if by that you mean having the highest innate 
aggression.  Look at weasels, or Pekinese dogs, or maybe even chimps.

If by "meanest" you mean able and occasionally willing to wreak disaster, that 
is not a prerequisite of hi-tech, but simply hi-tech itself, being used in a 
particular way.  Most of the disaster we wreak on other species using our
hi-tech is done in completely cold blood, without bad temper, though perhaps 
short-sightedly.

Of course, our ancestors did better at surviving than other, closely-related 
species of hominids.  But last I heard it wasn't clear that we drove them into 
extinction by competion; it may simply be that other factors polished them 
off, but not us.  Even if we did compete them into extinction, we didn't 
necessarily do it by waging war on them; we might simply have been better at 
hunting and gathering and migrating than they, due to better posture, higher 
intelligence, better family ties, or other things not directly related to 
aggression.

Earl Wajenberg
421.23MYCRFT::PARODIJohn H. ParodiTue Mar 31 1987 16:526
  Also check out Hogan's "Gentle Giants of Ganymede" and "Inherit The Stars."
  In Hogan's universe, the giants in question evolved on a world without
  predators.

  JP
421.24REGENT::POWERSWed Apr 01 1987 10:4931
>  Also check out Hogan's "Gentle Giants of Ganymede" and "Inherit The Stars."
>  In Hogan's universe, the giants in question evolved on a world without
>  predators.

That bothered me when I read those books.  I find it hard to believe that
animal life could evolve and not turn out some number of carnivores.
(I believe that the reference in Hogan is to carnivores, not merely
predators.)
Without carnivores, there would be no carrion eaters, and without
carrion eaters, there would be have quite a pile of dead animals waiting for 
the fungi and bacteria to finish them off.  That's an awfully large ecological
niche standing empty and available.  Once there are carrion eaters,
then it's a small step to having one carrion eater start to eat the 
disabled-but-not-quite-dead, and then competitive advantage leads 
on to predation.  (Remember the buzzard poster:  "Patience hell, I'm gonna
go kill something.")
This yields greater advantage to intelligence.  Predators need to be smart
to catch food smart enough to run away, and prey needs to be smart to 
avoid capture.  So predation does encourage intelligence, and not just
for the predator.  I think Hogan acknowledges the low-pressure, slow-growth
mode in references to how long it took the Gentle Giants to reach their apex.

Until altruism is universal, either by instinct or intellectual adoption,
self-interest will be the prime criterion to survival.  Even then,
competition among groups each altruistic within themselves will lead to
fights to the death.  Thus I believe that the dominant life forces
will be the meanest sons of whatever in their ecospheres, where "meanest"
means willing to go to the wall, but not necessarily doing so wantonly 
or without reason.

- tom]
421.25The Armor-Plated Cream PuffPROSE::WAJENBERGWed Apr 01 1987 11:0619
    But almost any animal will "go to the wall" (fight desparately and
    without restraint) against the right foe.  So that isn't much of
    a hallmark of the most advanced lifeforms.
    
    It may be that some animals never exhibit win-or-die-trying
    aggression, but if any do, I suspect it is the big social carnivores 
    at the top of the food chain, e.g. lions and wolves.  These animals 
    have no natural predators and built-in inhibitions about killing each 
    other in combat; thus they may not be prepared to fight to the death.  
    (I could be wrong; maybe they DO sometimes fight to the death.)
    
    This suggests that, among intelligent lifeforms generally, most
    of them can exhibit die-trying determination when they deem it
    necessary.  If any cannot, it will most likely be the ones who LOOK
    like the meanest ones around, creatures like Poul Anderson's Adzel,
    all armor and teeth on the outside, who may find it expedient to
    be much more accomodating on the inside.
    
    Earl Wajenberg
421.26MAGIC::HAGELA. R. Hagel ZKO2-2/R32 381-2536Thu Apr 02 1987 18:545
    RE .24
    
    	Hogan's series did have carnivores; however, their effectiveness
    decreased over time as a result of the giants developing a posionous
    system.
421.27Xeno-anthropology/Xeno-sapientology?SWAPIT::LAMQ ��Ktl��Fri Mar 09 1990 16:395
    After reading some of the replies in hear, I'm wondering if someone
    should start a xeno-anthropology or xeno-sapientology topic.  A
    discussion of intelligent life-forms. Xenobiology implies talking about
    any form of extraterrestrial life from one-celled bacteria to
    multi-celled organisms and doesnt always imply sentience.