We all grow from small bunch of cells into fully-fledged adults, but rarely do we get to see the process in action. In this video, researchers have peered into a mouse kidney, to watch how cells branch out to form the organ's internal pipework.
For the first time ever, a whole lab-grown kidney has been successfully transplanted into a rat, where it allowed the creature to process urine like a really kidney would—and it could someday save your life.
When Ray Fearing received a kidney from his sister, Cera, after a long battle with a disease which forms scar tissue on the kidney, he was extremely relieved. Sadly, his condition worsened and the doctors had no choice but to remove the kidney—but it went on to find itself inside a third patient.
Whether it's lion manes, peacock tails, or narwhal horns, secondary sexual characteristics are generally there to set males apart and, theoretically, make them more impressive to potential mates. For red-spotted newts, there's nothing sexier than thick, oozing kidneys. Yes, really.
There's a lot of reasonable things I would trade for an iPad 2. 500 bucks, Pepsi, a stack of clothes, basically anything my life wouldn't miss. A 17-year-old kid from China was a little unreasonable—he traded his kidney.
The last place I imagined being was in an operating room following the minute-by-minute highlights of the significant kidney surgery being performed on Brian's dad.