The thorny prickly lizard eats ants, scooping up hundreds with one lick of its sticky tongue.
Fossils show Arctic was once a tropical paradise
Fossils show Arctic was once a tropical paradise New fossils found on Axel Heiberg Island in the
Canadian Arctic suggest that the climate of the area was once
tropical. The bones of a cold-blooded lizard called the champosaur
were found along with turtle and plant fossils. These species could
not tolerate the cold, which gives evidence of the warmth of the
area about 90 million years ago. Scientists had previously assumed
that the Arctic had never been warm enough to support creatures
such as the champosaurs. Scientists say that the finds could be
important in helping them to refine their models of how the earth
responds to carbon dioxide pollution. 18 DECEMBER 1998
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