[Xcelerate]

Although what about from a human health perspective? Can humans survive in a gravity that weak for a long time? What about animals?

[njharman]

What's long? a year? twenty?

And to answer that question and others is why we(humans) have bothered with Space Lab, Mir, IST. You can Google answer.

[Xcelerate]

No, I mean if humans were to colonize Mars -- would gravity make that process difficult?

[wang2bo2]

Definitely, with little gravity it could even be impossible for women to bear and give birth to a child

[freehunter]

I'm unfamiliar with how gravity factors into pregnancy and birthing. Do you have any further details on that?

[saraid216]

I found this: http://curious.astro.cornell.edu/question.php?number=702