Endangered North Atlantic Right Whale Found Dead With Tail Tangled In Rope

Just 360 individuals of the species remain.


Maddy Chapman

Maddy is a Editor and Writer at IFLScience, with a degree in biochemistry from the University of York.

Editor & Writer

Edited by Holly Large
Holly Large - Editorial Assistant

Holly Large

Editorial Assistant

Holly is a graduate medical biochemist with an enthusiasm for making science interesting, fun and accessible.

Dead North Atlantic right whale tangled in rope

North Atlantic right whales are one of the most endangered large whales.

Image credit: Woods Hole Oceanographic Institute/Michael Moore. Taken under NOAA Permit # 24359.

A female North Atlantic right whale has been found dead off the coast of Martha’s Vineyard, Massachusetts, with a rope wrapped around it, the National Oceanic and Atmospheric Administration (NOAA) announced on Sunday.

“On the afternoon of January 28, 2024, NOAA Fisheries was notified of a deceased female North Atlantic right whale near Joseph Sylvia State Beach,” reads a statement. The whale, they add, is thought to be a juvenile and was found with a piece of rope entangled around and embedded in its peduncle – the area where the tail fluke connects to the body.

North Atlantic right whale with its tail tangled in rope
Close-up of the whale's tail with embedded rope.
Image credit: Woods Hole Oceanographic Institution/Michael Moore NOAA Permit # 24359

North Atlantic right whales are one of the most endangered of all large whale species. By the early 1890s, they had been hunted to the brink of extinction and their population has never recovered to pre-whaling numbers. Although they no longer face the perils of whaling, humans still represent their biggest threat, namely because of vessel strikes and encounters with fishing gear. According to NOAA Fisheries, only around 360 individuals remain, including fewer than 70 reproductively active females.

“It’s devastating to hear about another loss to North Atlantic right whales,” Gib Brogan, a campaign director at Oceana, an international conservation group based in Washington, told The New York Times. “This death is even more troubling when it is a female calf that could have gone on to have many calves of her own for decades to come.”

The whale’s cause of death is not currently known, but experts are examining the rope and planning a necropsy (animal autopsy) to hopefully find some clues, NOAA said. Becoming ensnared in a rope in such a way can have a detrimental effect on a whale’s swimming, feeding, and reproduction, and could also lead to flesh wounds and, therefore, potentially life-threatening infections, according to Oceana.

North Atlantic right whale tail tangled in rope
Close-up of the rope going across and under the whale and a snarl of rope emerging from the injury.
Image credit: Woods Hole Oceanorgraphic Institution/Michael Moore NOAA Permit # 24359

This is the latest in a string of whale deaths and injuries off the US coast and comes during the right whale’s calving season, which runs from November to April.


Since 2017, there has been an ongoing Unusual Mortality Event for North Atlantic right whales, and this whale is the 37th documented mortality. In that same period, 35 whales have also been found seriously injured, and 51 sublethally injured or ill. 

On a more positive note, NOAA Fisheries have been making comprehensive efforts to help protect these endangered whales, by addressing the threats they face and monitoring their progress, as described in their "Road to Recovery" for North Atlantic right whales.


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  • right whales,

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  • north atlantic right whales