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Creature 
Fast Facts

Introducing you to extinct species.

domed Mauritius giant tortoise

THE DOMED MAURITIUS

GIANT TORTOISE

1. There are two extinct giant tortoise species from Mauritius, the domed and the saddleback. 2. The species name is Cylindraspis triserrata. Triserrata actually refers to the three bony ridges on this animal's mandibles. 3. The domed Mauritius giant tortoise was a flatter, rounder shape, with thinner bones and shell, while the saddleback's shell allowed them to reach higher vegetation. 4. The tortoise population density on Mauritius and surrounding islets was extremely high, and they played a key role for seed dispersion. 5. 400 - 500 tortoises were used to make 1 barrel of oil. 6. These giant tortoises were prized by sailors for their meat and their ability to survive months without food or water. 7. It is believed that the domed Mauritius giant tortoise was extinct on Mauritius by the early 1700's and by 1735 on the other islets. 8. A report from 1884 seems to say at least one female giant tortoise survived on Round Island, an islet just north of Mauritius, but is unknown whether she was a domed or saddleback tortoise. It is also unclear what happened to her or her offspring. 9. An Aldabra tortoise named Jonathan turned 190 on December 4, 2022, so in theory one of those hatchlings from Round Island could still be alive at around 140 years old. 10. Lonesome George, the world famous Pinta Island tortoise from the Galapagos Islands, was a saddleback tortoise.

Extinction 
Cometh

Facing the light at the end of the tunnel

EXTINCTION DATE

1735 or 1884

 

When people think of extinction & Mauritius, an island in the Indian Ocean off the east coast of Africa, they think about the famous dodo. Many other species on Mauritius also went extinct as people colonized the island. The domed Mauritius giant tortoise as well as the related saddle-back Mauritius giant tortoise went extinct around the same time. First discovered by the Portuguese around 1506 as they were looking for a trade route connecting Portugal to the East Indies. Although the Portuguese stopped by the island of Mauritius on their trade routes for supplies such as fresh water, fruit, dodo, and tortoises, they did not make the island a permanent colony. In 1598, the Dutch began colonizing Mauritius. The Dutch did use both species of Mauritius giant tortoises as a food source and said they tasted good. Sailors would also use the tortoises for oil. It took between 400 - 500 tortoises for one barrel of oil. The introduction of invasive species like rats, snakes, monkeys, and pigs ate the eggs of tortoises. It is believed that the domed Mauritius giant tortoise was extinct on Mauritius by the early 1700's. By 1735 it vanished on the other islets. A report from 1884 seemed to say at least one female giant tortoise survived on Round Island, just north of Mauritius, and she even laid eggs, but it is unknown which type she was. Although Jurassic Park is fiction, scientists are working on several de-extinction projects. In fact, in 2003 scientists did bring back the extinct Pyrenean ibex, a type of wild goat, for 7 minutes before it died, showing de-extinction is possible. The domed Mauritius giant tortoise might be a candidate. Scientists would potentially use DNA from museum specimens . If the domed Mauritius giant tortoise was brought to life, could it ever be reintroduced to its native homeland in Mauritius? This very question is wrapped up well by the observations by Ben J. Novak who works with Revive & Restore, a scientific group looking into de-extinction projects like the dodo and Mauritius giant tortoises. Mr. Novak said, “My time in Mauritius was a true crash course in the nation’s proud conservation movement. Mauritius, while having lost the majority of its endemic species, is home to some of the most incredible recovery projects of endangered species anywhere in the world. For example, after having declined to only 12 individuals in 1968, the population of Rodriguez Fody, a small, red-faced songbird, has recovered to over 8,000. Mauritius has pioneered innovative hybrid programs of in situ and ex situ conservation recovery, exemplified by the Mauritius Kestrel recovery; the population has grown from a single female and 3 males in 1974 to over 400 individuals today. And it is one of the first countries to replace an extinct species, the endemic Mauritius Giant Tortoise, with a living ecological surrogate – the Aldabra Giant Tortoise. In essence, Mauritius has already done de-extinction the non-genetic way.” It seems that if giant tortoises ever were brought back, Mauritius has already done much to prepare for its return. In fact many other giant tortoises have brought to Mauritius and neighboring Rodrigues Island much to the joy of tourists who visit those islands. It may not be exactly the way "nature intended it", but adding Aldabra tortoises to the Mauritius ecosystem has restored a species to fulfill the role of seed disperser and fertilizer to the island that was lost when the domed and saddleback Mauritius giant tortoises went extinct.

Lazarus
Tales

Short stories of return

COMING SOON

The domed Mauritius giant tortoise's tale has yet to be written, but what adventures will await it when it returns to Mauritius? Stay tuned to find out.

More to Explore
All answers lead to more questions

A reconstruction on display at the Mauritius Natural History Museum, Port Louis, Mauritius
Image from Revive & Restore

An illustration from 1598 showing Dutch sailors parrot hunting from the back of a domed Mauritius giant tortoise 
Image from Wikipedia

Skull of Cylindraspis triserrata
Image from Wikipedia

A stamp series remembering the two species of extinct giant tortoises from Mauritius
Image from Rememberance Day for Lost Species

A poster representing species that have gone extinct on the island of Mauritius
Image from Facebook

Extinct Species of Mauritius
Image from Deviant Art 

Wild Kratts Episode
Image from Facebook

Which extinct species should scientists try to resurrect?
Image from Research Gate

Giant tortoises are being brought to Mauritius & Rodrigues Island
Image from Mauritius Attractions

Giant tortoises are being brought back to Mauritius for tourism & restoring ecological balance
Image from Francois Leguat Reserve

A "bale" (group) of giant tortoises
Image from top10maritius.com

"Making friends with 100 year old tortoises"
Image from Mauritius Travel

Map of Mauritius & Rodrigues Islands
Image from Kids World Travel Guide

Status of World's Turtles & Tortoises 
Image from Monga Bay

Turtle vs. Tortoise
Image from Byju

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