They’ve gone and done it, those crafty scientists: As reported by Nature (as in the publication), a team of Japanese researchers has successfully cultivated “fully developed sperm” from “immature mouse testicles.” And they’re not just showing off.
It’s been more than two decades since the birth of Louise Brown, the world’s first “test-tube baby,” and now one of the pioneers who helped make in vitro fertilization (and, by extension, Brown herself) a reality has been tapped to receive the Nobel Prize in physiology or medicine.