*canada

Adding video to channels (Canada) - requested by deathcow.

Love it!

I imagine in space you get used to being able to let go of things and they stay there, so I wonder if he drops a lot of things after returning back to Earth.

well how much of a force in our evolution is gravity... if gradually change our exposures and make generation after generation adapted to lower gravity... will our phenotypes change? longer bodies, long heads? lol....

*learn

Adding video to channels (Learn) - requested by messenger.

Hahahaha, No. No more than plucking out all your hair by it's roots generation after generation will eventually yield permanently bald children.

Exposure to gravity, or lack of it, will eventually cause changes in the body as it evolves. Not the long heads and bodies vaire2ube alludes to but other things, like maybe a resistance to osteoporosis.

If you imagine everyone on earth suddenly has to live in a weightless environment I'm sure you can imagine how it would help some people and damage others. Those with dangerously high blood pressure could end up bursting a blood vessel in the brain, killing them, whereas others with dangerously low blood pressure would survive better. Weightlessness would lead to selection favouring low blood pressure in this instance. I'm not sure if this exact example would happen, but I'm sure you can imagine that making a huge change to the environment such as removing the effect of gravity would have a profound effect on our bodies, and that effect could then lead to natural selection and evolution.