> This is already wrong! Animalia is an Earth kingdom, and the Xenomorphs clearly aren't an Earth life-form.
Has biology even bothered to come up with a name for that level of taxon, or would it be premature? I know that in recent years they've been quibbling about both what the top-level (Earth top-level) taxon should be, and what the specific ones would even be for it, but I've never heard of a scheme that embiggens it to alien life. If they ever did so, would there even be the same number of sub-taxons for it for any given planet?
And what in the hell do we do if we discover one of those on Earth? There's no reason to be certain that life only abiogenically manifested once on Earth is there?
Has biology even bothered to come up with a name for that level of taxon, or would it be premature? I know that in recent years they've been quibbling about both what the top-level (Earth top-level) taxon should be, and what the specific ones would even be for it, but I've never heard of a scheme that embiggens it to alien life. If they ever did so, would there even be the same number of sub-taxons for it for any given planet?
And what in the hell do we do if we discover one of those on Earth? There's no reason to be certain that life only abiogenically manifested once on Earth is there?