Stock Photo - 'Cryolophosaurus  dinosaur.      Artwork         of Cryolophosaurus, a carnivorous dinosaur that lived in Antarctica during the  early  Jurassic  period, 196  to  190  million  years  ago ... .  It was about 6 metres  in  length.   The  region  that   is   now Antarctica  was  further  north during this period   and  had   a    warmer    climate.   The  animal's distinctive  crest  was probably used for display, for  example  during  mating  or  competition  for territory.   The  lights  seen  in the sky are the aurora australis,  the southern equivalent of  the aurora  borealis  (Northern lights).  It is caused   by  charged  particles  from the  Sun  interacting with the upper atmosphere.