Alien Encounter Filmed In Mexico

[Canyarion]

I still think it would be higly unlikely, but perhaps that's because I recently read Michael Crichton's Sphere.

Why would an alien have 2 arms? Why not 4, why not 40? I wanted to ask why it would have 2 eyes, but that's because stereoscopocy I guess... though 1 large eye would do the same trick.
But still, why would alien lifeforms even have eyes? Perhaps they wouldn't be using the same spectrum we do... And again I say, perhaps they wouldn't even live in our 3 dimensions.