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there are probably lots of different aliens,some near humans some humanoids,some reptilian some bird like,the possibilities are endless  |
They probably would not look like anything that you listed. They are all clades that have evolved on earth; think of the simplest unicellular organisms and the most unusual fungi and realise that we , albeit very distantly, are related. What would something we are not at all related to look like?
Definitely not like anything that has evolved due to the unique conditions of the earth.