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	Re: The benefit of three eyes in a triangle shape
	Posted By: Lion O Cyborg	Date: 11/7/16 3:20 a.m.
	In Response To: Re: The benefit of three eyes in a triangle shape (Philtron) : It is fun to wonder what environmental conditions could have led to having : three eyes. Obviously the zero gravity environment doesn't make sense : (unless the pfhor evolved in vacuum). : Animals on Earth evolved two eyes for (as had been stated) depth perception : which made it easier to make sense of three dimensional physical space : which in turn allowed for faster and more precise movement within that : space thus making it easier to avoid predators or capture prey. : So how would three eyes improve on depth perception from two eyes? As you : said, it wouldn't, so what kind of environmental conditions could have : encouraged the selection of three eyes? : I'm going to jump off from your point about being able to see up while still : looking ahead (and I'll ignore the down pointed triangle of the Marathon 1 : eyes). What if in the Pfhor's ancient genetic ancestry there was a high : risk of predation from air born animals? The ability to view of a higher : angle while still looking forward would be a great advantage for running : away while still observing predators above oneself. : And I believe in Marathon 1 Leela says that the Pfhor's light bodies were : adapted for lower gravities. So, if the Pfhor's home planet had a lighter : gravity than Earth's then this might encourage a greater number of : lifeforms with flight since in a lower gravity it takes less energy to : fly. Thus the proliferation of aerial predators might have been what : selected for a trait that allowed for visibility of the terrain in front : of oneself as well as the skies simultaneously. : Just my two sense. In the same way that the Pfhor themselves seem to be in some cases, an evolutionary hierarchy of bugs, reptiles and/or birds depending on the species/race. E.g. fighters would be insects, hunters would be cyborg reptiles and enforcers and higher ranks would be birds. The more evolved you are determines your base rank in the hierarchy unless you are a slave race like the S'pht in which case you stay at Conditioned rank. Pfhor themselves can be demoted to conditioned rank (and sent to mop up the dungeon) if they fail too many times, but not enough to/are too valuable to be executed.

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Replies:

	The benefit of three eyes in a triangle shape	VikingBoyBilly	11/1/16 1:17 p.m.
	Re: The benefit of three eyes in a triangle shape	Forrest of B.org	11/1/16 3:35 p.m.
	Re: The benefit of three eyes in a triangle shape	AustinHinton	11/6/16 2:58 p.m.
	Re: The benefit of three eyes in a triangle shape	Philtron	11/3/16 8:59 p.m.
	Re: The benefit of three eyes in a triangle shape	Lion O Cyborg	11/7/16 3:20 a.m.

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