In the depths of the Hoyo Negro pit 180 feet below sea level, a diving team has successfully recovered the skulls, jaw bones, ...

or “polar bear lizard”, after the cold, snowy upper latitudes of its natural habitat. The single species Nanuqsaurus hoglundi is known from a partial skull fragment from the Prince Creek ...

Katsuo Harada keeps in his possession the skull of a brown bear that nearly killed him 23 years ago. The skull’s jaw is movable, allowing Harada to show how the bear’s teeth, including its ...