There are some interesting facts about polar bears and brown bears on the sceptic blog http://notrickszone.com/2012/07/07/arthur-c-smith-iii-polar-bear-extinct… … and really, it is all about the Ice Ages, ice advances and retreats, and the changing habitat of the polar bear – their remains have even been found in Ireland. It also stresses the differences between polar bears and brown bears – although hybrids are known. What is obvious when assessing the palaeoclimate record on polar bears is that they have lived through a succession of climate changes – why would the current minor warming event cause a crisis? Humans are the enemy of the polar bear – hunters.
Poley Bears
7 July 2012Biology