(Reuters) - A mysterious 68-million-year-old fossil found on Seymour Island off Antarctica's coast that looked like a deflated football has turned out to be a unique find - the second-largest egg on record and one that may have belonged to a huge marine reptile that lived alongside the dinosaurs.
The fossilized egg - measuring 8 by 11 inches (29 by 20 cm) - is only slightly smaller than eggs of Madagascar's giant flightless elephant birds that went extinct only in the past several centuries, scientists said on Wednesday.
