ALERT: The once-endangered giant tortoise population is thriving, with a new survey finding 180,000 on an island in the Seychelles.
The Seychelles Islands Foundation (SIF) and the University of Exeter conducted a new survey and found the slow-moving reptiles on Aldabra Atoll.
The island was home to just 1,000 Aldabra tortoises after exploitation in the 19th century, before it became a nature reserve in 1981.
Researchers are calling it the greatest conservation success in the history of the Indian Ocean.