Search for "Lonesome George" mate is "long shot"

By Alonso Soto

PUERTO AYORA, Ecuador (Reuters) - While scientists search for a mate for "Lonesome George" -- the last known survivor of a species of Galapagos tortoise -- some say the effort to fend off extinction may be in vain.

Even if a mate is found, George has not been interested in reproducing in the past and may not know how, former keepers and others who have worked with him said.

"The search is a long shot," said Linda Cayot, a science adviser for the Galapagos Conservancy and former keeper of George. "George may be physiologically incapable of reproducing."

Until recently, George was thought to be the last member of a species of giant tortoise found only on Pinta, one of the Galapagos Islands off Ecuador.

Earlier this year, however, scientists at Yale University in Connecticut said they had found a male tortoise on the island of Isabela, another Galapagos island, that was the offspring of a Pinta male and an Isabela female. That suggests there may be Pinta island tortoises on Isabela.

But even if a potential mate is found, George has shown little interest in reproducing with the female tortoises who are kept with him in his pen at the Darwin Research Center.

"He has problems ... he probably never saw a female and male of his own species reproducing," said Swiss biologist Sveva Grigioni, who worked with George 13 years ago.

Even when younger males were introduced to the females in the pen, George failed to get the idea.