Polarfronten has published a popular article on bowhead whale research in Greenland by Dr Fredrik Christiansen. Linked in the thread.
Drones are used to assess diets and body condition for assessing the effects of climate change on food availability.
Drone footage:
youtu.be/tUXBpOmcEDM?...
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Marine Mammal Research at Aarhus University, Ecoscience