A new fossil trackway in China reveals a dinosaur scratching the sandy bottom as it goes for a swim.
Xing L, Zhang J, Lockley MG, Klein H, Li D, Persons WS IV. 2013. A new Early Cretaceous dinosaur track assemblage and the first definite non-avian theropod swim trackway from China. Chinese Science Bulletin DOI 10.1007/s11434-0: 1-9.