(SFGate)
Three cows clomped, single-file, through a chute to line up for sonograms - ultrasound "preg checks" - to reveal if they were expecting calves next summer.
"Right now. This is exciting, right this minute," animal geneticist Alison Van Eenennaam said as she waited for a tiny blob of a fetus to materialize on a laptop screen on a recent afternoon at the Beef Barn, part of the University of California at Davis's sprawling agricultural facilities for teaching and research.
The cows had been implanted a month and a half earlier with embryos genetically edited to grow and look like males, regardless of their biological gender. Read more