Comments on: Revising the polar bear's evolutionary past… again http://blogs.discovermagazine.com/notrocketscience/2012/07/24/polar-bear-evolutionary-history/ Mon, 26 Nov 2012 12:00:51 +0000 hourly 1 http://wordpress.org/?v=3.4.2 By: Torbjörn Larsson, OM http://blogs.discovermagazine.com/notrocketscience/2012/07/24/polar-bear-evolutionary-history/#comment-15588 Torbjörn Larsson, OM Tue, 24 Jul 2012 14:23:26 +0000 http://blogs.discovermagazine.com/notrocketscience/?p=7312#comment-15588 I note that it seems difficult for a layman to see how Janke's claim of the timing of the ice caps correlates with the timing of the phylogeny. Wikipedia describes the Antarctic ice cap as forming @ ~ 15 Ma bp conforming with their description of cooling towards the end of Neogene, a commercial "ecological" site claims the same age for the Arctic ice cap, a 2nd oddball encyclopedic site claims that these timings are controversial and the Antarctic ice cap only about as old (~ 3 Ma bp) as when the glaciations started @ ~ 2.6 Ma bp (I think). Do I smell a follow up science article here? I note that it seems difficult for a layman to see how Janke’s claim of the timing of the ice caps correlates with the timing of the phylogeny.

Wikipedia describes the Antarctic ice cap as forming @ ~ 15 Ma bp conforming with their description of cooling towards the end of Neogene, a commercial “ecological” site claims the same age for the Arctic ice cap, a 2nd oddball encyclopedic site claims that these timings are controversial and the Antarctic ice cap only about as old (~ 3 Ma bp) as when the glaciations started @ ~ 2.6 Ma bp (I think).

Do I smell a follow up science article here?

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