Amazing and very rare footage was captured by specialists from the University of Hawaii. They filmed humpback whales feeding their calves. In Maui, a breeding ground for mammals, the researchers placed non-invasive markings on the suction cups of 7 humpback whale calves. With the help of these cameras, they were able to capture the process of feeding calves with milk.
The scientists also used drones to gather information. They tracked the parameters of mammals, as well as the health of the babies.