I'd expect life elsewhere to be much like ours in general, especially when you consider the full range of life both present and past on earth. The course of evo

I'd expect life elsewhere to be much like ours in general, especially when you consider the full range of life both present and past on earth. The course of evolution is necessarily going to be similar anywhere - bound by the rules of chemistry, going from simple to complex forms, single cellular to multicellular, a full range of sensory modalities developing, predator/prey species evolving under similar high level dynamics, etc, etc. These types of generality have nothing to do specifically with life on earth. Of course the details will vary, but I'd expect alien animals to be recognizably animals, even if they include some novel aspects specific to their own environments.