GENEVA: A six-legged calf has defied the odds by thriving despite a vet's prediction at birth that it wouldn't survive.

Seven-week-old Lilli is now a minor celebrity in her native Switzerland after local media were splashed with images of the calf frolicking across a sunny field.

Farmer Andreas Knutti from Weissenburg, which is 19 miles (30 kilometers) south of the capital Bern, says he couldn't bring himself to euthanize the animal because she was "so full of life."

He told Swiss daily Blick Thursday that a curve in her spine means Lilli may never become a normal milk cow.

But Knutti says if the calf stays healthy she'll still be allowed to join the others when they head for their Alpine pastures this summer.