In the depths of the Hoyo Negro pit 180 feet below sea level, a diving team has successfully recovered the skulls, jaw bones, ...
More information: J. Rodríguez et al, Cave bear tracks ( Ursichnus europaeus Diedrich, 2011) from Honseca Cave, Palencia, Spain, Ichnos (2025). DOI: 10.1080/10420940.2024.2446153 Journal ...