Just saying that "playing God" already happens.
It only leads to a few scenarios:
1: We can do it because we are responsible enough to do it, and your God wants us to do it.
2: God just forgot to nerf our intelligence.
3: How are we able to do it, if only God can, The answer God does not exist.
Suppose science creates 2000 neanderthals. Where do they go? Who is going to govern them? How do you keep them on their Reservation? How are they going to get money?
Suppose they can easily speak English, or German, or Korean... whatever... and it turns out they are intelligent and want to be part of the world, then what? Just let them mingle back into society? Perhaps... but then doesn't that counter the entire reason for the experiment at all? Suppose then they want to intermarry with the "Regular" humans? Will their be laws to forbid that? Will they have full Rights in the nation they live in?
It is just a very big Can of Worms, with little to gain. Bring back a couple might be science worthy, but then so is any number of genetic experiments that are generally forbidden for many reasons.
They are gone and it would be the more moral thing to do to leave them that way.
I beg to differ there is unlimited potential to gain from studying a hominid who attributed its DNA to many humans that exist today, with regards to the animals you mentioned it would be best they stayed extinct, mainly for the environment they lived in will now not be able to sustain them at all.
Edited by xxxch00bxxx, 28 January 2013 - 09:30 PM.