How drones and sensors are helping this researcher measure North Atlantic right whale health
Researcher Gina Lonati is using new tools to measure the ecosystem and health of endangered North Atlantic right whales. She told CBC News: Compass host Louise Martin that it might help improve the species' rate of survival.
2:09
30:02
1:59
1:33
9:27
6:23
0:58
1:34
1:41
