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Researchers Uncover Remains of Prehistoric Shark Species Even Older Than Dinosaurs in a Cave in America
Researchers Uncover Remains of Prehistoric Shark Species Even Older Than Dinosaurs in a Cave in America The legacy of "sea ...
Earth.com5d
Two prehistoric sea monsters found after 325 million years in the world’s largest cave
Two 325-million-year-old ctenacanth shark fossils discovered in Mammoth Cave shed light on ancient marine ecosystems.
Cool off underground: These are the best caves in the US to explore this summer
Tulelake, CaliforniaFormed by half a million years of volcanic activity, Lava Beds National Monument contains the highest ...
WLOX9mon
‘Experience the disappointment of Mammoth Cave’: National park embraces criticism
MAMMOTH CAVE, Ky. (WBKO/Gray News ... “Can’t ever get enough of the miserable geology, history and nature right out my back door.” Others chimed in with similar sentiments or to express ...