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raygungoth — oh hai
Published: 2008-03-28 18:41:41 +0000 UTC; Views: 807; Favourites: 14; Downloads: 9
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Description
Im in ur taiga, inventan a mouthendosymbiosis made me a fotofores n' radioceptors, but nachural selekshun ated it, but nachural selekshun made me a fotoceptors 'stead so is okay
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Comments: 18
This is very good, I like it. I need to be a bit more descriptive with my creatures.
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Oh no! Lolcats has invaded exobiology!
Haha! Brilliant use of kitty pidgin!
What are those organs (with the round pits) on the sides of it's head? Are they like pit viper's heat receptors?
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They're photoreceptors - light-sensitive patches of skin that are beginning to go concave. The animals in the tundra of the northern continent are starting to do this, evolving eyes in response to the variety of situations up there, which is causing them to lose their endosymbiotic photophores, since glowing means a swift and painful death.
This fellow in particular has developed a series of chelicerae and tentacles that mimics mouth-like action for better entrapment of prey, and it's only getting better. That's not a lower mandible, for example, it's a giant, modified tentacle-topping fang.
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Okay! Thanks for the explaination! Yeah, that bothered me in Expedition. The seemingly non-related species would suggest extreme divergence from a long lived planet, but with that much time for divergence at least some Darwin IV organisms should have evolved eyes, cause their bioluminescence to become a huge setback.
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What about the Rime Runner, it had a cool little eye thingy.
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It did, didn't it? I also think I remember immediately thinking "that poor organ will freeze solid in a minute," 'cuz it was mounted in a completely bizarre place.
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Well, yes, but it didn't seem like much of a predator though.
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Unless they're one of those organisms that look sedate from a distance, but will proceed to tear the nearest annoyance to bit!
(Like hippos)
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Like hippos? I thought more like humans, or panda bears.
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Yes. The bioluminescence in other creatures is a holdover from a previous era. The major landforms evolved from aquatic ancestors, as is expected, but from ancestors adapted to an environment with no light (thermal vents in an inland sea. The rapid disappearance of this sea forced an adapt-or-die scenario that they're still recovering from: most animals don't get much bigger than, say, a horse); high-frequency light waves directed in arcs and then interpreted evolved as a means of getting around without visible light. The glowy patches on animals are a relic of their endosymbiosis with the bacteria that produces those sorts of light waves (some of which are well into the visual spectrum). In an environment where the booms and dishes animals typically use to get around is a hindrance, they lose them in favor of something else; with plenty of ambient light, eyes are "looking" to be the next big thing in their evolutionary history, especially since their seeing competition with another, new animal group from the outer sea that possesses well-developed compound eyes already.
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Well, I guess that bioluminescence would wanish soon after the eyes. there is no need to give away energy in such a pointless way, and with animals not selecting mates based on how bright their bioluminescence is - they're bind, right? - there would be no "trend" towards bright bioluminescence, and even "dimmer" animals would get a chance, because there would be a different "deciding factor" other than biolumenescence, and eventually the energy-saving "dimmer" animals would get more common than bioluminescent animals, untill at least vast majority of the animals were not bioluminescent.
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That's actually what's happening right now (at least, in the "time slice" I work with). There are fewer bioluminescent patches then greater the distance from the old inland sea; anything that still uses bio-radar still has the patches. oh hai has no photophores at all, and completely lacks luminescence.
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I'm guessing that by the looks of it your land fauna evolved from a two-finned creature that could detect light, but couldn't form images?
How long have land-forms existed? It seems they only evolved recently.
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That is correct. It hasn't been very long at all. A lot of life is relegated to the shores of the seas and there's plenty of barren space between. The oxygen level is pretty high, though it isn't high enough for visitors (they still have to wear a meager mask).
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The oceans, on the other hand, are chock full of some very ancient creatures; land itself is a new concept around the planet.
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