Maybe I've been revising for Ecology too much (hah!) but this theory made me go a bit geeky.
Dominic Parker (email@example.com) writes:
Although there are plenty of plants and trees on the Halos (but some of the tree graphics aren't so good...), there is no wildlife: why is all the grass in Halo nice and clean cut? are there robotic Forunner lawn mowers which come out of little holes and do all the gardening while nobody is looking? What's up with that?