Frozen Planet: BBC denies misleading fans
12 December 2011 Last updated at 19:06 GMT
The BBC has denied misleading Frozen Planet viewers with footage of newborn polar bear cubs filmed in an animal park, rather than in the wild.
Episode five of the series featured the cubs in a den with their mother, with many people assuming they were born and filmed in the Arctic.
But the cubs were actually in a Dutch animal park, as revealed in behind-the-scenes footage on the show's website.
Lizo Mzimba reports.