The Antarctic did not escape the mass extinction
The extinction that killed the dinosaurs also devastated polar species
The reason for this belief was twofold: firstly, the Antarctic was far away from the Caribbean impact; but secondly, polar life was already adapted to the "nuclear winter" conditions created by the impact - long periods of complete darkness.
But a new study by James Witts, a PhD student in the School of Earth and Environment at the University of Leeds, has put that theory to rest. His study of more than 6,000 marine fossils from Seymour Island in the Antarctic has determined that the extinction was just as rapid and severe at higher latitudes as everywhere else on the planet.