File talk:Polar bear vs brown bear.png

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Source?

[edit]

Can this graphic and description be attributed to a reliable source? The current distribution of the bear species does not necessarily reflect their mode of speciation. Further, the biogeography shown here would suggest a number of possible geographic modes of speciation such as parapatric or allopatric speciation. I'm concerned this interpretation of the distribution is novel/original research. Andrew. Z. Colvin • Talk 08:51, 19 June 2017 (UTC)[reply]

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File_talk:Polar_bear_vs_brown_bear.png&oldid=248335162"