The remarkably rare discovery of a fossilised pregnant ground sloth and its fetus has been reported.
Cástor Cartelle at the Pontifical Catholic University of Minas Gerais in Brazil had been exploring an extensive Brazilian cave for 2 hours when he discovered the fossil sloth, from the species Nothrotherium maquinense.
While excavating this fossil, Cartelle says he was surprised when a small bone fell into his hands. “As I gained a better understanding of the orientation, …