An artist's illustration shows individuals from the fish-eating pterosaur species Hamipterus tianshanensis, including adults, juvenile and eggs in this handout illustration obtained by Reuters November 30, 2017. Fossils of hundreds of Hamipterus individuals and more than 200 eggs were discovered at a site in Xinjiang Uygur Autonomous Region in northwestern China. Zhao Chuang/Handout via REUTERS