Ok i just got to thinking that what are the animals of alien plants look like? I mean we share the planet with at least 10 million other species, so wonder what fantastic animals live with the "grays" or other types of aliens on there home planets.

I imagine that the alien critters would have large eyes just like the grays because their planet probably does not have that much light for themselves to have large eyeslike other nocturnal terran animals.

I figured they'd be similar to what we have here, but distorted in a way as to fit the environs of their world. They did some doco about this years ago if blank memory serves correct.

By alien animal do you mean "lower alien lifeform"? We're all animals too and I guess the same would go for aliens. People claim that different advanced species live on one planet so there could be two different dominant species on one planet. I don't know if that would work out though. I kind of think that would lead to conflict and one would eventually dominate the other.

i agree, no matter what one will always out do the other, how ever, think about the game, rock paper scissors

rock beats scissors, scissors beats paper, but paper beats rock

that is a very possible scenario, as that is basically what earth was like when dinosaurs ruled, there would be no apex

It would be like a food circle instead of a food chain?

us

It seems to me that they would be similar to what we have here but different at the same time. Just how we are compard to the greys. I also agree that sooner or later one intel spieces will dominate over the other if 2 where on the same planet similar to how humans ssurvived and the neaderthals didnt on earth.