Play Live Radio
Next Up:
0:00
0:00
Available On Air Stations

Science

David Ayares, president and chief scientific officer of Revivicor, holds a piglet raised for research at a company farm in Montgomery County, Virginia.
Scott P. Yates for NPR
Scientists are optimistic that gene-edited animals could provide a new source of organs for transplantation. Pig organs modified to minimize rejection are now being tested in humans.
A helicopter flies above a wildfire burning in Canada this summer. Smoke from these wildfires floated hundreds of miles, blanketing much of North America in toxic air.
James MacDonald
/
Bloomberg via Getty Images