Skip to main content

The Yangtze Giant Softshell Turtle Just Got 25 Percent Closer to Extinction

With the death of Vietnam’s beloved Cu Rua, only three of these turtles remain on the planet

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American


The death of one of the world’s most iconic animals has put a species one step closer toward extinction.

The massive turtle known as Cu Rua, who passed away last week, had swum in the waters of Hoan Kiem Lake in Hanoi, Vietnam, for decades, if not more than a century. A beloved and worshipped animal, Cu Rua was one of the last four Yangtze giant softshell turtles (Rafetus swinhoei) left in the world.

Now only three remain: a turtle of unknown gender in another lake outside of Hanoi and a male-female pair in China. Conservationists attempted artificial insemination to impregnate the Chinese female and therefore perpetuate the species last year, but the resulting eggs were all infertile.


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


Cu Rua’s death appears to be of natural causes. Five years ago the 200 kilogram turtle needed to be rescued and temporarily protected after fishing hooks and invasive red-eared slider turtles (Trachemys scripta elegans) injured the animal. The rescue attempt required 50 volunteers and was witnessed by a thousand onlookers.

Considered to be incarnation of a mythical being that originally lived in Hoan Kiem in the 15th century, Cu Rua was revered by people throughout Vietnam, who often traveled to the lake to witness the sacred animal.

They may still have that opportunity in the future. Cu Rua’s body will now be embalmed and preserved for display.

John R. Platt is the editor of The Revelator. An award-winning environmental journalist, his work has appeared in Scientific American, Audubon, Motherboard, and numerous other magazines and publications. His "Extinction Countdown" column has run continuously since 2004 and has covered news and science related to more than 1,000 endangered species. John lives on the outskirts of Portland, Ore., where he finds himself surrounded by animals and cartoonists.

More by John R. Platt