Ecuador's environment ministry: A new species of giant tortoise has been discovered in the Galapagos after DNA testing found animals living on one island had not yet been recorded

A new species of giant tortoise has been discovered in the Galapagos after DNA testing found animals living on one island had not yet been recorded, Ecuador's environment ministry said.

Researchers compared the genetic material of tortoises currently living on San Cristobal with bones and shells collected in 1906 from a cave in the island's highlands and found them to be different.

The 20th-century explorers never reached the lowlands northeast of the island, where the animals live today, and as a result, almost 8,000 tortoises correspond to a different lineage to what was previously thought.

"The species of giant tortoise that inhabits San Cristobal Island, until now known scientifically as Chelonoidis chathamensis, genetically matches a different species," the ministry said Thursday on Twitter.

Galapagos Conservancy said in a newsletter that the Chelonoidis chathamensis species is "almost certainly extinct" and that the island had in fact been home to two different varieties of tortoise, one living in the highlands and another in the lowlands.

Located in the Pacific about 1,000 kilometers (600 miles) off the coast of Ecuador, the Galapagos Islands are a protected wildlife area and home to unique species of flora and fauna.

There were originally 15 species of giant tortoise on the islands, three of which became extinct centuries ago, according to the Galapagos National Park.

In 2019, a specimen of Chelonoidis phantastica was found on Fernandina Island more than 100 years after the species was considered extinct.