this is actually really cool. They've gotten mice that can regenerate stuff. Basically, scientists were able to cut off toes, tails, and damage ears, and the mice regenerated these. In the case of the toes, even the joint grew back. What's more amazing is they also damaged the heart and liver, and those too grew back. The only organ that didn't regenerate was the brain. Obviously this has some serious implications for medicine.
They were also able to transfer the regenerative properties from one mouse to another using a simple injection. Neato!
