Bowhead whales like their afternoon siestas. Researchers say the drone footage was not harmful to the bowhead whales. (VDOS Global 2016)She believes this is the first intensive effort to study bowhead whales with the use of an aerial drone, and says researchers now have a better understanding of how the whales forage and travel. But the aerial footage, along with the clarity of the northern waters, means researchers can now observe the whales' body language in real time. The whales spent the early morning feeding in deep water and then rested in shallow, coastal waters during the afternoon.

Source: CBC News October 21, 2016 22:39 UTC