Rodolfo Salas-Gismondi, founder and director of the paleontology department at the Museum of Natural History of the Universidad Nacional Mayor de San Marcos, shows the fossil remains of a crocodile that inhabited the planet seven million years ago, giving scientists clues about how modern day crocodiles, who live in freshwater ecosystems, come from the sea, in Lima, Peru May 16, 2022. Picture taken May 16, 2022. REUTERS/Sebastian Castaneda