July 14, 2018 - A biotech rescue for the northern white rhino, smarty-pants parrots brain structure, and more…

High-energy neutrino source found, night shifts disrupt our brain and gut clocks, and sizing up human roars
Sudan, the last male northern white rhino, died in March 2018. (Tony Karumba/AFP/Getty Images)
Listen to the full episode54:00

This week guest host Britt Wray sits in for Bob McDonald.