News From the Field

Heart monitors on wild narwhals reveal alarming responses to stress


December 7, 2017

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Stress from human disturbances could cause behavioral responses in narwhals that are inconsistent with their physiological capacities, researchers say. They found that narwhals released after entanglement in nets and outfitted with heart monitors performed a series of deep dives, swimming hard to escape, while their heart rates dropped to unexpectedly low levels of three to four beats per minute.Full Story

Source
University of California, Santa Cruz

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