Quote:
Originally Posted by RedFive
That's why so many great discoveries come from digging below the surface of the planet 
Well, there exists evidence today that dinosaurs once walked this planet. And we're also pretty sure we know what happened which put an end to their era. So what's that..? 65 million years...? |
Oh, and you assume that galaxy travelling aliens would bury their bodies under the Earth, provided they even have bodies in a normal sense at all.
Bones can remain, but structures
will erode away very fast.