In an experiment that raises bioethical issues, researchers in China have generated a blueprint of a humanized kidney in a pig embryo
Edit: Surprised at all the vegans in this thread. I didn't think there were so many of you. I'm glad you care so much about animal rights, that you're willing to forego eating them and using products made from them.
If you're not vegan and have moral objections for this, maybe you should look at yourself first and all the animal abuse you sanction by eating animals and using animal products.
Did you know dairy cows have to be pregnant to produce milk? They're artificially inseminated throughout most of their lives. I hope everyone complaining about this also complains about ice cream and cheese. Or else they would be hypocrites who just want to blame others but never look at themselves.
And why is that? Why attach value which can be compared to living species? I dislike such kind of ethical system. This is a flawed absolutist argument.
I like that commenters keep saying animals as if that blanket term doesn't include humans. Anyone who thinks people aren't animals is not worth arguing with.