A new species of ancient shark has been discovered at Mammoth Cave National Park in Kentucky, officials said. Named Macadens olsoni, the fossils were found in the Ste....
“ The research was conducted by a team of scientists from the National Park Service Paleontology Program, Mammoth Cave National Park, and the Smithsonian Paleobiology Department....
“ Every discovery connects the past with the present and offers invaluable educational opportunities for students and the public.”....
综合
ABC新闻-美国新闻
2025-07-25 00:00:00.0