What Would Happen to Humanoid Bone Structure If the Moon Crashed Into Earth?

AI Thread Summary
If the Moon were to crash into Earth and humanoid life eventually evolved, its bone structure would likely remain similar to ours due to the fundamental principles of evolution adapting to the environment. The Moon's relatively small mass (1.2% of Earth's) suggests that significant changes to bone structure would be unlikely. While a lunar impact could lead to mass extinction and environmental upheaval, the basic vertebrate and invertebrate structures would persist. The discussion also highlights that tidal activity would decrease, potentially affecting the evolution of marine life. Overall, the evolutionary trajectory of humanoid beings would not drastically differ from our own.
Lord Squid
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Hi all,

This is a bit of a bizarre question, but:

If some way, some how, the moon crashed into Earth... then (oh so many) years later humanoid life appeared, what might its bone structure be like in contrast to ours?

That is all
 
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There's no reason to think that it would be any different on a very basic level, since we evolved to match our environment and the moon crash thing wouldn't change things as much as living on a different planet would. There would still be vertebrates, invertebrates, plants, fungi, etc. and anyone of them could end up being an intelligent and therefore dominant species.
Lest you think that I wasn't paying attention, the term "humanoid" to me indicates a shape rather than a structure.
 
Lord Squid said:
If some way, some how, the moon crashed into Earth... then (oh so many) years later humanoid life appeared, what might its bone structure be like in contrast to ours?
The Moon's mass is only 1.2% of the Earth's mass. Why should there be any significant changes to the bone structure?
 
A.T. said:
The Moon's mass is only 1.2% of the Earth's mass. Why should there be any significant changes to the bone structure?
I think that he's going for the "mass extinction—repopulation" scenario. You have to admit that a lunar impact would to a large extent bugger up our environment.
 
Thanks Danger for the great response!

So... the change of the shape (sorry, wrong terminology on my part there) of the life forms would be pretty much the same, that's super good to know.

There would be much less tidal activity also... What possible things might happen to undersea life?

again thank you so very much
 
Lord Squid said:
There would be much less tidal activity also
Maybe our ancestors would have never made it out of the water, if they had not stranded during a low tide one day. Thanks Mr. Moon!
 
Well, tides wouldn't completely disappear. Solar gravity and Earth's axial tilt also contribute.
 

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