The Križna jama Cave on the east side of the periodic Cerknica Lake in Slovenia is an underground karstic cave primarily famous as a rich site of bones of the extinct cave bear, Ursus speleus. The eight kilometer long cave is full of stalagmites and stalactites (sometimes called drip-stone decorations) and also boasts 50 underground lakes separated by sinter barriers through which crystal clear water flows. Križna jama is also one of the most biodiverse cave systems in the world, with over 60 troglobionts living in the cave divided fairly evenly between aquatic and terrestrial life forms.
Description by Peter Huber, after the description on imaggeo.egu.eu.
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