The Sac Actun cave system ... to the short-faced bear and the bones of one — possibly two — wolf-like Protocyon have been successfully secured thus far. All recovered fossils have since ...

A set of footprints impressed in clay in the Honseca Cave ... fossils and promote their preservation," says Rodríguez, lead author of the work. More information: J. Rodríguez et al, Cave bear ...