![PBS NewsHour - Segments show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/082/426/small/pbs-newshour-segments.png)
Summary: After the world's last male northern white rhino died in Kenya two weeks ago, scientists are hoping in vitro fertilization with the last two females can save the subspecies from extinction. The government is also using the rhino’s death as a cautionary tale, taking further steps to preserve other subspecies that still remain. NewsHour Weekend’s Zachary Green reports.