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A study of more than 6,000 marine fossils from the Antarctic, ranging in age from 69- to 65-million-years-old, shows that the mass extinction event that killed the dinosaurs was sudden and just as deadly to life in the polar regions. Previously, scientists had thought that creatures living in the southernmost regions of the planet would have been in a less perilous position during the mass extinction event than those elsewhere on Earth. In this video, PhD student James Witts from the University’s School of
