Since halo being an artificail life world wouldn't you think you would see some animals on halo like birds,fish,repitles etc. It does'nt make sence but thinking about the forerunners that lived on halo for thousands of years how would they live on halo just eat grass, there had to be atleast some kind of animal lifeform to feed off of.
[Edited on 5/3/2004 7:20:28 AM]
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Maybe they were taken over by the flood. lol.