Blood filtering allows unmatched kidney transplants: Remove the antibodies from a transplant patient’s blood and they can receive a new organ from any donor. More than a hundred patients, most of whom had been told they had no hope of ever receiving a kidney transplant, have been successful recipients with the new procedure, developed by a team at Johns Hopkins. And: ‘ Two Japanese researchers have revealed the first details of their claim to have grown tadpole eyeballs from scratch in the lab. They say the eyes are functional when they are transplanted into tadpoles, and even work when the tadpoles metamorphose into frogs.

“None of the eyes were rejected and none dropped out,” said Makoto Asashima, of the University of Tokyo. “All of the frogs can see.” New Scientist