A giant fossilized egg of an extinct marine reptile has been found in the 68-million-year-old nearshore marine deposits in Antarctica. An artist’s rendering of a pair of mosasaurs and their egg. Image credit: Francisco Hueichaleo. Named Antarcticoolithus bradyi, the new fossil is the first fossilized egg found in Antarctica. The specimen exceeds eggs of all known non-avian dinosaurs in volume and differs from them in structure. Measuring 29 by 20...