If UFOs are on the air, USOs on the sea what is the land equivalent?

I imagine they'd be UTOs Unidentified Terrestrial Object

Actually yes. Check out Skinwalker ranch. Thats the closest thing can think of.

>>18048851
A car with no plate.

>>18048851
Also most vessels in operation are called arv or alien reproduction vehicles and are manned by humans.

>>18048851
Ok, I'll bite.
Are you talking about vehicles that moves above ground, or under it?

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Androids.

>>18048882
Both are good, but I was mostly thinking on things that walk or roll on land.

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>>18048851
Guess who?